Pub Date : 2009-12-01DOI: 10.1109/AVFOP.2009.5342737
Laurence Watkins, R. V. Leeuwen, Bing Xu, Qing Wang, C. Ghosh
The performance of analog photonic systems is strongly affected by laser power and noise. There are two components to the noise, intensity noise and phase noise. The phase noise directly impacts linewidth and can also be converted to intensity noise via wavelength sensitive components.
{"title":"Compact high power DPSS laser with very low RIN and phase noise for 1550nm wavelength band","authors":"Laurence Watkins, R. V. Leeuwen, Bing Xu, Qing Wang, C. Ghosh","doi":"10.1109/AVFOP.2009.5342737","DOIUrl":"https://doi.org/10.1109/AVFOP.2009.5342737","url":null,"abstract":"The performance of analog photonic systems is strongly affected by laser power and noise. There are two components to the noise, intensity noise and phase noise. The phase noise directly impacts linewidth and can also be converted to intensity noise via wavelength sensitive components.","PeriodicalId":416780,"journal":{"name":"2009 IEEE Avionics, Fiber-Optics and Phototonics Technology Conference","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126876276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-12-01DOI: 10.1109/AVFOP.2009.5342645
A. Mendez, V. Hernandez, R. Gagliardi, C. Bennett
C/PPS is a flexible multibit per symbol modulation format. It has the same architecture as PPM, but has greater bandwidth efficiency. It can utilize a code set to maximize the data rate of a particular user or distribute its codes to various users at different data rates. In the latter case, it is important to consider the associated effects on QoS. C/PPS is less sensitive to synchronization than PPM because the code defines the slot, independent of time-of-arrival. More research on virtual quadrants and multiuser detection is needed for C/PPS because the C/PPS transmission is broadcast-like and all decoders have signals.
{"title":"Comparison of WDM/pulse-position-modulation (WDM/PPM) with code/pulse-position-swapping (C/PPS) based on wavelength/time codes","authors":"A. Mendez, V. Hernandez, R. Gagliardi, C. Bennett","doi":"10.1109/AVFOP.2009.5342645","DOIUrl":"https://doi.org/10.1109/AVFOP.2009.5342645","url":null,"abstract":"C/PPS is a flexible multibit per symbol modulation format. It has the same architecture as PPM, but has greater bandwidth efficiency. It can utilize a code set to maximize the data rate of a particular user or distribute its codes to various users at different data rates. In the latter case, it is important to consider the associated effects on QoS. C/PPS is less sensitive to synchronization than PPM because the code defines the slot, independent of time-of-arrival. More research on virtual quadrants and multiuser detection is needed for C/PPS because the C/PPS transmission is broadcast-like and all decoders have signals.","PeriodicalId":416780,"journal":{"name":"2009 IEEE Avionics, Fiber-Optics and Phototonics Technology Conference","volume":"178 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124424149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-12-01DOI: 10.1109/AVFOP.2009.5342644
L. Wesson
The challenge of repairing of fiber optic cables on aircraft has been recognized for some time, but until recently very few solutions have been pursued or accepted. Since 2004, however, several companies and agencies, particularly the Naval Air Warfare Center (NAVAIR), have directed attention to this problem. Basically four generic approaches are agreed-upon - remove and replace an entire damaged cable, reterminate connector termini on site, mechanically splice a damaged cable, or fusion splice it - each with advantages and disadvantages depending on the application. In this paper we discuss some recent advances in mechanical and fusion splicing, with particular attention to cable strength restoration and safety in hazardous atmospheres (fueled aircraft).
{"title":"New developments in field splicing of avionics fiber optic cable","authors":"L. Wesson","doi":"10.1109/AVFOP.2009.5342644","DOIUrl":"https://doi.org/10.1109/AVFOP.2009.5342644","url":null,"abstract":"The challenge of repairing of fiber optic cables on aircraft has been recognized for some time, but until recently very few solutions have been pursued or accepted. Since 2004, however, several companies and agencies, particularly the Naval Air Warfare Center (NAVAIR), have directed attention to this problem. Basically four generic approaches are agreed-upon - remove and replace an entire damaged cable, reterminate connector termini on site, mechanically splice a damaged cable, or fusion splice it - each with advantages and disadvantages depending on the application. In this paper we discuss some recent advances in mechanical and fusion splicing, with particular attention to cable strength restoration and safety in hazardous atmospheres (fueled aircraft).","PeriodicalId":416780,"journal":{"name":"2009 IEEE Avionics, Fiber-Optics and Phototonics Technology Conference","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125958825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-12-01DOI: 10.1109/AVFOP.2009.5342736
C. Madsen, M. Solmaz, D. Adams, R. Atkins, J. Simcik
The integration density on lithium niobate is limited by the low-index-contrast diffused waveguides. We summarize recent work on vertical integration of a high-index-contrast waveguide layer to enable U-bends and ring resonators with sub-mm bend radii.
{"title":"Getting more on lithium niobate: Vertical integration","authors":"C. Madsen, M. Solmaz, D. Adams, R. Atkins, J. Simcik","doi":"10.1109/AVFOP.2009.5342736","DOIUrl":"https://doi.org/10.1109/AVFOP.2009.5342736","url":null,"abstract":"The integration density on lithium niobate is limited by the low-index-contrast diffused waveguides. We summarize recent work on vertical integration of a high-index-contrast waveguide layer to enable U-bends and ring resonators with sub-mm bend radii.","PeriodicalId":416780,"journal":{"name":"2009 IEEE Avionics, Fiber-Optics and Phototonics Technology Conference","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133770392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-12-01DOI: 10.1109/AVFOP.2009.5342624
G. Fish, A. Fang, J. Bowers
Silicon based photonic integration technology has advanced significantly in the last several years and it is maturing to the point that it can bring unique opportunities for avionics systems to utilize photonics.
{"title":"(Invited) review of the state-of-the-art in silicon photonics and its potential for aerospace applications","authors":"G. Fish, A. Fang, J. Bowers","doi":"10.1109/AVFOP.2009.5342624","DOIUrl":"https://doi.org/10.1109/AVFOP.2009.5342624","url":null,"abstract":"Silicon based photonic integration technology has advanced significantly in the last several years and it is maturing to the point that it can bring unique opportunities for avionics systems to utilize photonics.","PeriodicalId":416780,"journal":{"name":"2009 IEEE Avionics, Fiber-Optics and Phototonics Technology Conference","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124482437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-12-01DOI: 10.1109/AVFOP.2009.5342629
M. Mašanović, S. Nicholes, D. Blumenthal, J. Barton
Recent advances in the field of photonic integration have made compact, small form factor, robust realizations of the avionic network components and subsystems a reality. In this paper, we discussed the recent progress in large scale photonic integration and its implications on realization of integrated avionic DWDM node technologies.
{"title":"Photonic technologies for an integrated optical node for avionic networks","authors":"M. Mašanović, S. Nicholes, D. Blumenthal, J. Barton","doi":"10.1109/AVFOP.2009.5342629","DOIUrl":"https://doi.org/10.1109/AVFOP.2009.5342629","url":null,"abstract":"Recent advances in the field of photonic integration have made compact, small form factor, robust realizations of the avionic network components and subsystems a reality. In this paper, we discussed the recent progress in large scale photonic integration and its implications on realization of integrated avionic DWDM node technologies.","PeriodicalId":416780,"journal":{"name":"2009 IEEE Avionics, Fiber-Optics and Phototonics Technology Conference","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130794046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-12-01DOI: 10.1109/AVFOP.2009.5342713
T. K. Woodward, T. Banwell, A. Agarwal, P. Toliver, R. Menendez
The quest for ever-greater situational awareness creates a need for continuous improvement in signal processing technology. Avionic platforms present a particularly challenging host platform in terms of size, weight, and power (SWaP), with RF signals a major area of interest. Decades of unbroken exponential progress in underlying microelectronics technology combined with the flexibility of programmable function have made digital signal processing (DSP) the signal processing method of choice, yet RF signal processing continues to exhibit significant analog aspects. Analog signal processing (ASP) is used only when a system constraint compels it. One such constraint arises from the fact that signals are generally analog to start with, compelling an analog to digital conversion (ADC) step that has many analog aspects. A second case are classes of signal processing problems for which the necessary ADC technology is not available, for which ASP must be at least partially employed. Finally, the DSP task itself may be too costly relative to an ASP alternative. We consider here opportunities for optical technology to impact these constraints and discuss their common challenge, the analog optical link.
{"title":"Signal processing in analog optical links","authors":"T. K. Woodward, T. Banwell, A. Agarwal, P. Toliver, R. Menendez","doi":"10.1109/AVFOP.2009.5342713","DOIUrl":"https://doi.org/10.1109/AVFOP.2009.5342713","url":null,"abstract":"The quest for ever-greater situational awareness creates a need for continuous improvement in signal processing technology. Avionic platforms present a particularly challenging host platform in terms of size, weight, and power (SWaP), with RF signals a major area of interest. Decades of unbroken exponential progress in underlying microelectronics technology combined with the flexibility of programmable function have made digital signal processing (DSP) the signal processing method of choice, yet RF signal processing continues to exhibit significant analog aspects. Analog signal processing (ASP) is used only when a system constraint compels it. One such constraint arises from the fact that signals are generally analog to start with, compelling an analog to digital conversion (ADC) step that has many analog aspects. A second case are classes of signal processing problems for which the necessary ADC technology is not available, for which ASP must be at least partially employed. Finally, the DSP task itself may be too costly relative to an ASP alternative. We consider here opportunities for optical technology to impact these constraints and discuss their common challenge, the analog optical link.","PeriodicalId":416780,"journal":{"name":"2009 IEEE Avionics, Fiber-Optics and Phototonics Technology Conference","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114242783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-12-01DOI: 10.1109/AVFOP.2009.5342731
A. Karim, J. Devenport
In this paper, three distinct operating regimes for an analog fiber optic link with Mach-Zehnder modulators (MZM) are described. A third operating regime for an analog fiber optic link has been described that maximizes a linearity figure of merit. This balanced operating point should be considered for sub-octave applications since it can eliminate the need for electronic amplifiers on both sides of the fiber optic link.
{"title":"Modulator bias regimes for analog optical links","authors":"A. Karim, J. Devenport","doi":"10.1109/AVFOP.2009.5342731","DOIUrl":"https://doi.org/10.1109/AVFOP.2009.5342731","url":null,"abstract":"In this paper, three distinct operating regimes for an analog fiber optic link with Mach-Zehnder modulators (MZM) are described. A third operating regime for an analog fiber optic link has been described that maximizes a linearity figure of merit. This balanced operating point should be considered for sub-octave applications since it can eliminate the need for electronic amplifiers on both sides of the fiber optic link.","PeriodicalId":416780,"journal":{"name":"2009 IEEE Avionics, Fiber-Optics and Phototonics Technology Conference","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122809373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-12-01DOI: 10.1109/AVFOP.2009.5342648
N. Chand, B. Eteson
High-speed optical LAN is the obvious choice to meet the ever increasing bandwidth needs on avionics platforms [1][2] and reducing size, weight, power, and cost (SWAP + cost). Fiber supports both digital and RF signals and a wide range of protocols. The deterministic, high-integrity Avionics Full Duplex Switched Ethernet (AFDX), which supports 10/100 Mb/s in star configurations, has the potential to replace ARINC 429, IEEE 1394, and US MIL-STD-1553B. Ethernet offers significant cost advantages, flexible provisioning and rapid service reconfiguration, automatic equipment self-identification, remote management and software upgrades, simplified network management, and software-activated VLANs. Most deployed avionics optical systems are point-to-point (p-p) 850-nm multimode fiber (MMF) links. A great deal of work remains to be done to engineer reliable, flexible, and modular optical systems to function across a demanding range of harsh operating environmental conditions. Here, we discuss technologies that address some of these.
{"title":"Optical LAN for avionics platforms","authors":"N. Chand, B. Eteson","doi":"10.1109/AVFOP.2009.5342648","DOIUrl":"https://doi.org/10.1109/AVFOP.2009.5342648","url":null,"abstract":"High-speed optical LAN is the obvious choice to meet the ever increasing bandwidth needs on avionics platforms [1][2] and reducing size, weight, power, and cost (SWAP + cost). Fiber supports both digital and RF signals and a wide range of protocols. The deterministic, high-integrity Avionics Full Duplex Switched Ethernet (AFDX), which supports 10/100 Mb/s in star configurations, has the potential to replace ARINC 429, IEEE 1394, and US MIL-STD-1553B. Ethernet offers significant cost advantages, flexible provisioning and rapid service reconfiguration, automatic equipment self-identification, remote management and software upgrades, simplified network management, and software-activated VLANs. Most deployed avionics optical systems are point-to-point (p-p) 850-nm multimode fiber (MMF) links. A great deal of work remains to be done to engineer reliable, flexible, and modular optical systems to function across a demanding range of harsh operating environmental conditions. Here, we discuss technologies that address some of these.","PeriodicalId":416780,"journal":{"name":"2009 IEEE Avionics, Fiber-Optics and Phototonics Technology Conference","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133467498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-12-01DOI: 10.1109/AVFOP.2009.5342630
C. Kuznia, C. Tabbert
We introduce the concept of board-to-board optical interconnects within missile and munitions systems. These links can potentially the replace electrical routing between ICs and connectors with direct board-to-board optical interconnects. We discuss the use of 850 nm VCSEL-based transceivers within these aerospace and missile/munitions systems and present shock test data.
{"title":"Board-to-board optical interconnects within aerospace and missile/munitions systems","authors":"C. Kuznia, C. Tabbert","doi":"10.1109/AVFOP.2009.5342630","DOIUrl":"https://doi.org/10.1109/AVFOP.2009.5342630","url":null,"abstract":"We introduce the concept of board-to-board optical interconnects within missile and munitions systems. These links can potentially the replace electrical routing between ICs and connectors with direct board-to-board optical interconnects. We discuss the use of 850 nm VCSEL-based transceivers within these aerospace and missile/munitions systems and present shock test data.","PeriodicalId":416780,"journal":{"name":"2009 IEEE Avionics, Fiber-Optics and Phototonics Technology Conference","volume":"28 12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125687655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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