Pub Date : 2011-07-18DOI: 10.1109/PHOSST.2011.6000078
D. Barros, J. Kahn, J. Wilde, Tarek Abou Zeid
We propose a network architecture supporting variable-bandwidth OFDM channels to enable increased traffic aggregation and maximize spectral efficiency. A new ROADM design enables efficient (de)multiplexing of variable-bandwidth channels.
Pub Date : 2011-07-18DOI: 10.1109/PHOSST.2011.6000026
Subash Sachidananda, A. Ling
This work aims at controlling the bias voltage of APDs, used for single photon detection, with a micro-controller through pulse height comparison.
本工作旨在利用微控制器通过脉冲高度比较来控制用于单光子探测的apd的偏置电压。
{"title":"Bias voltage control of avalanche photo-diode using a window comparator","authors":"Subash Sachidananda, A. Ling","doi":"10.1109/PHOSST.2011.6000026","DOIUrl":"https://doi.org/10.1109/PHOSST.2011.6000026","url":null,"abstract":"This work aims at controlling the bias voltage of APDs, used for single photon detection, with a micro-controller through pulse height comparison.","PeriodicalId":273355,"journal":{"name":"2011 IEEE Photonics Society Summer Topical Meeting Series","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130196440","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 : 2011-07-18DOI: 10.1109/PHOSST.2011.6000041
M. Razeghi, Y. Bai, N. Bandyopadhyay, B. Gokden, Q. Lu, S. Slivken
The wall plug efficiency of the mid-infrared quantum cascade laser in room temperature continuous wave (cw) operation is brought to 21%, with a maximum output power of 5.1 W. Using a surface grating distributed feedback (DFB) approach, we demonstrated 2.4 W single mode output in room temperature cw operation. With a photonic crystal distributed feedback (PCDFB) design, we achieved single mode spectrum and close to diffraction limited far field with a room temperature high peak power of 34 W.
{"title":"Recent advances in IR semiconductor laser diodes and future trends","authors":"M. Razeghi, Y. Bai, N. Bandyopadhyay, B. Gokden, Q. Lu, S. Slivken","doi":"10.1109/PHOSST.2011.6000041","DOIUrl":"https://doi.org/10.1109/PHOSST.2011.6000041","url":null,"abstract":"The wall plug efficiency of the mid-infrared quantum cascade laser in room temperature continuous wave (cw) operation is brought to 21%, with a maximum output power of 5.1 W. Using a surface grating distributed feedback (DFB) approach, we demonstrated 2.4 W single mode output in room temperature cw operation. With a photonic crystal distributed feedback (PCDFB) design, we achieved single mode spectrum and close to diffraction limited far field with a room temperature high peak power of 34 W.","PeriodicalId":273355,"journal":{"name":"2011 IEEE Photonics Society Summer Topical Meeting Series","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130332768","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 : 2011-07-18DOI: 10.1109/PHOSST.2011.6000024
Zhiliang Yuan, J. Dynes, A. Dixon, A. Sharpe, A. Shields
We report gigacounts/s photon counting using self-differencing InGaAs avalanche photodiodes. Its application to quantum key distribution has enabled a secure key-rate of 1Mb/s over 50km in laboratory and 304kb/s over 45km in the field-test.
{"title":"Gigacounts/s photon detection and its applications","authors":"Zhiliang Yuan, J. Dynes, A. Dixon, A. Sharpe, A. Shields","doi":"10.1109/PHOSST.2011.6000024","DOIUrl":"https://doi.org/10.1109/PHOSST.2011.6000024","url":null,"abstract":"We report gigacounts/s photon counting using self-differencing InGaAs avalanche photodiodes. Its application to quantum key distribution has enabled a secure key-rate of 1Mb/s over 50km in laboratory and 304kb/s over 45km in the field-test.","PeriodicalId":273355,"journal":{"name":"2011 IEEE Photonics Society Summer Topical Meeting Series","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121891454","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 : 2011-07-18DOI: 10.1109/PHOSST.2011.6000054
M. Islam
A continuous spectrum covering ∼1.9–4.5 microns with ∼1.4W power beyond 3.8 microns (50% duty cycle) is generated in a Mid-Infrared Super-Continuum Laser. An optical conversion efficiency of ∼9% is achieved from a thulium-doped power amplifier to the super-continuum.
{"title":"High efficiency, all-fiber-integrated Mid-Infrared Super-Continuum Laser (MISCL)","authors":"M. Islam","doi":"10.1109/PHOSST.2011.6000054","DOIUrl":"https://doi.org/10.1109/PHOSST.2011.6000054","url":null,"abstract":"A continuous spectrum covering ∼1.9–4.5 microns with ∼1.4W power beyond 3.8 microns (50% duty cycle) is generated in a Mid-Infrared Super-Continuum Laser. An optical conversion efficiency of ∼9% is achieved from a thulium-doped power amplifier to the super-continuum.","PeriodicalId":273355,"journal":{"name":"2011 IEEE Photonics Society Summer Topical Meeting Series","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132830086","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 : 2011-07-18DOI: 10.1109/PHOSST.2011.6000093
F. Hauske, Qi Juan, F. Pittalà
Frequency-domain implementation for parallelized filtering and timing recovery combined with data-aided channel estimation is reviewed for low-complexity high-speed processing. Furthermore, replacement of carrier recovery by simple soft-differential demodulation with subsequent non-redundant error correction is proposed.
{"title":"Efficient digital signal processing for equalization and synchronization","authors":"F. Hauske, Qi Juan, F. Pittalà","doi":"10.1109/PHOSST.2011.6000093","DOIUrl":"https://doi.org/10.1109/PHOSST.2011.6000093","url":null,"abstract":"Frequency-domain implementation for parallelized filtering and timing recovery combined with data-aided channel estimation is reviewed for low-complexity high-speed processing. Furthermore, replacement of carrier recovery by simple soft-differential demodulation with subsequent non-redundant error correction is proposed.","PeriodicalId":273355,"journal":{"name":"2011 IEEE Photonics Society Summer Topical Meeting Series","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116344624","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 : 2011-07-18DOI: 10.1109/PHOSST.2011.6000022
A. Christ, A. Eckstein, B. Brecht, C. Lupo, Hristine Silberhorn
We introduce ultrafast information coding on multiple orthogonal pulse modes, using waveguided PDC sources emitting the required quantum states. We present optical pulse gates enabling state manipulation and (de)-multiplexing and analyze the obtained channel capacities.
{"title":"Ultrafast optical information coding: State generation, manipulation and distribution","authors":"A. Christ, A. Eckstein, B. Brecht, C. Lupo, Hristine Silberhorn","doi":"10.1109/PHOSST.2011.6000022","DOIUrl":"https://doi.org/10.1109/PHOSST.2011.6000022","url":null,"abstract":"We introduce ultrafast information coding on multiple orthogonal pulse modes, using waveguided PDC sources emitting the required quantum states. We present optical pulse gates enabling state manipulation and (de)-multiplexing and analyze the obtained channel capacities.","PeriodicalId":273355,"journal":{"name":"2011 IEEE Photonics Society Summer Topical Meeting Series","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114603415","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 : 2011-07-18DOI: 10.1109/PHOSST.2011.6000038
C. Kumar, N. Patel
Quantum cascade lasers (QCL) were first demonstrated in 1994. However, it took nearly eight years before the first continuous wave, room temperature (CW/RT) operation was successful, brought about by an improved design for rapidly depopulating the lower laser level thorough the use of two phonon resonance technique. The progress since 2002 has been remarkable in improving the power output and wallplug efficiency. Furthermore, newer structure design ideas (notably the nonresonant extraction, NRE, principle for rapid depopulation of the lower laser level without the use of two phonon resonance) have emerged, which increase the structure design flexibility for simultaneous improvements in various operating parameters of QCLs. At present, CW/RT power outputs of >3 W and wall plug efficiency in excess of 15 % have been demonstrated at 4.6 μm in the midwave infrared (MWIR) region. Using the NRE structure design ideas we have demonstrated CW/RT power output in excess of 2 W at 4.0 μm and have extended QCL operation up to 3.6 μm, were average power output of more than 300 mW has been obtained for room temperature operation. The NRE design principle is also applicable to longwave infrared (LWIR) regions to lead to improvements in power output and wallplug efficiency similar to those attained in the MWIR region. Over all CW/RT operation of QCLs now covers a wavelength region from 3.6 μm to longer than 12 μm. Pranalytica, being a vertically integrated (from fundamental design of the structure to final customer usable product, but fabless) manufacturer of QCLs, has been supplying high power CW/RT QCLs as well as cryogenically cooled QCLs producing substantially higher power output (>7 W, CW) at very high wallplug efficiency (>30%) to military, homeland security and civilian customers.
{"title":"Quantum cascade lasers and applications in defense and security","authors":"C. Kumar, N. Patel","doi":"10.1109/PHOSST.2011.6000038","DOIUrl":"https://doi.org/10.1109/PHOSST.2011.6000038","url":null,"abstract":"Quantum cascade lasers (QCL) were first demonstrated in 1994. However, it took nearly eight years before the first continuous wave, room temperature (CW/RT) operation was successful, brought about by an improved design for rapidly depopulating the lower laser level thorough the use of two phonon resonance technique. The progress since 2002 has been remarkable in improving the power output and wallplug efficiency. Furthermore, newer structure design ideas (notably the nonresonant extraction, NRE, principle for rapid depopulation of the lower laser level without the use of two phonon resonance) have emerged, which increase the structure design flexibility for simultaneous improvements in various operating parameters of QCLs. At present, CW/RT power outputs of >3 W and wall plug efficiency in excess of 15 % have been demonstrated at 4.6 μm in the midwave infrared (MWIR) region. Using the NRE structure design ideas we have demonstrated CW/RT power output in excess of 2 W at 4.0 μm and have extended QCL operation up to 3.6 μm, were average power output of more than 300 mW has been obtained for room temperature operation. The NRE design principle is also applicable to longwave infrared (LWIR) regions to lead to improvements in power output and wallplug efficiency similar to those attained in the MWIR region. Over all CW/RT operation of QCLs now covers a wavelength region from 3.6 μm to longer than 12 μm. Pranalytica, being a vertically integrated (from fundamental design of the structure to final customer usable product, but fabless) manufacturer of QCLs, has been supplying high power CW/RT QCLs as well as cryogenically cooled QCLs producing substantially higher power output (>7 W, CW) at very high wallplug efficiency (>30%) to military, homeland security and civilian customers.","PeriodicalId":273355,"journal":{"name":"2011 IEEE Photonics Society Summer Topical Meeting Series","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129399715","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 : 2011-07-18DOI: 10.1109/PHOSST.2011.6000077
D. J. Geisler, N. Fontaine, R. Scott, L. Paraschis, O. Gerstel, S. Yoo
We demonstrate coherent modulation and demodulation of data on independent subcarriers for increased interoperability. CoWDM waveforms with five 12 GHz subcarriers were generated on six 10 GHz subcarriers and detected on two 30 GHz subcarriers.
{"title":"Generation and detection of arbitrary modulation format, coherent optical waveforms scalable to a terahertz","authors":"D. J. Geisler, N. Fontaine, R. Scott, L. Paraschis, O. Gerstel, S. Yoo","doi":"10.1109/PHOSST.2011.6000077","DOIUrl":"https://doi.org/10.1109/PHOSST.2011.6000077","url":null,"abstract":"We demonstrate coherent modulation and demodulation of data on independent subcarriers for increased interoperability. CoWDM waveforms with five 12 GHz subcarriers were generated on six 10 GHz subcarriers and detected on two 30 GHz subcarriers.","PeriodicalId":273355,"journal":{"name":"2011 IEEE Photonics Society Summer Topical Meeting Series","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127152026","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 : 2011-07-18DOI: 10.1109/PHOSST.2011.6000050
F. Théberge, M. Châteauneuf, J. Dubois, A. Villeneuve, J. Salhany, B. Burgoyne
An efficient and tunable mid-infrared source based on difference-frequency mixing in a periodically poled LiNbO3 crystal is demonstrated. The pump and signal used are a diode-injected Yb:fiber amplifier synchronized with a programmable Er:fiber laser.
{"title":"Tunable mid-infrared generation using a synchronized programmable fiber lasers","authors":"F. Théberge, M. Châteauneuf, J. Dubois, A. Villeneuve, J. Salhany, B. Burgoyne","doi":"10.1109/PHOSST.2011.6000050","DOIUrl":"https://doi.org/10.1109/PHOSST.2011.6000050","url":null,"abstract":"An efficient and tunable mid-infrared source based on difference-frequency mixing in a periodically poled LiNbO3 crystal is demonstrated. The pump and signal used are a diode-injected Yb:fiber amplifier synchronized with a programmable Er:fiber laser.","PeriodicalId":273355,"journal":{"name":"2011 IEEE Photonics Society Summer Topical Meeting Series","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128697101","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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