Pub Date : 2021-12-01DOI: 10.1109/GFP51802.2021.9673886
H. Deng, W. Bogaerts
A configurable modulator is demonstrated, implemented as a silicon Mach-Zehnder interferometer with a plasma dispersion modulator and tunable couplers. The configurable modulator can work as a phase modulator or intensity modulator with optimized modulation response.
{"title":"Configurable Phase/Amplitude Modulator Circuit based on Silicon Plasma Dispersion","authors":"H. Deng, W. Bogaerts","doi":"10.1109/GFP51802.2021.9673886","DOIUrl":"https://doi.org/10.1109/GFP51802.2021.9673886","url":null,"abstract":"A configurable modulator is demonstrated, implemented as a silicon Mach-Zehnder interferometer with a plasma dispersion modulator and tunable couplers. The configurable modulator can work as a phase modulator or intensity modulator with optimized modulation response.","PeriodicalId":158770,"journal":{"name":"2021 IEEE 17th International Conference on Group IV Photonics (GFP)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131454818","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 : 2021-12-01DOI: 10.1109/GFP51802.2021.9673877
Khannan Rajendran, Awanish Pandey, Pierre Edinger, Gaehun Jo, A. Takabayashi, U. Khan, P. Verheyen, N. Quack, F. Niklaus, W. Bogaerts, K. Gylfason, D. van Thourhout
The thermal motion of a vacuum packaged, sus-pended nano-beam and nanophotonic waveguide on a silicon photonics-MEMS platform is measured. The resonance frequency and Q-factor of the observed mechanical modes are determined. We also experimentally estimate the displacement sensitivity to be $1.779 pm 0.022frac{{{text{fm}}}}{{sqrt {{text{Hz}}} }}$.
{"title":"Thermo-mechanical Noise Measurement of Sealed Nanobeams on a Silicon Photonics-MEMS Platform","authors":"Khannan Rajendran, Awanish Pandey, Pierre Edinger, Gaehun Jo, A. Takabayashi, U. Khan, P. Verheyen, N. Quack, F. Niklaus, W. Bogaerts, K. Gylfason, D. van Thourhout","doi":"10.1109/GFP51802.2021.9673877","DOIUrl":"https://doi.org/10.1109/GFP51802.2021.9673877","url":null,"abstract":"The thermal motion of a vacuum packaged, sus-pended nano-beam and nanophotonic waveguide on a silicon photonics-MEMS platform is measured. The resonance frequency and Q-factor of the observed mechanical modes are determined. We also experimentally estimate the displacement sensitivity to be $1.779 pm 0.022frac{{{text{fm}}}}{{sqrt {{text{Hz}}} }}$.","PeriodicalId":158770,"journal":{"name":"2021 IEEE 17th International Conference on Group IV Photonics (GFP)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114310485","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 : 2021-12-01DOI: 10.1109/GFP51802.2021.9673816
Awanish Pandey, Jing Zhang, D. Van
An exact solution to the steady-state dynamics of a microring modulator with simultaneous index and loss modulation is derived. We experimentally validate the theory by demonstrating the generation of an optical frequency comb from a carrier depletion-based ring modulator on silicon.
{"title":"Dynamics of a silicon ring modulator and demonstration of a frequency comb","authors":"Awanish Pandey, Jing Zhang, D. Van","doi":"10.1109/GFP51802.2021.9673816","DOIUrl":"https://doi.org/10.1109/GFP51802.2021.9673816","url":null,"abstract":"An exact solution to the steady-state dynamics of a microring modulator with simultaneous index and loss modulation is derived. We experimentally validate the theory by demonstrating the generation of an optical frequency comb from a carrier depletion-based ring modulator on silicon.","PeriodicalId":158770,"journal":{"name":"2021 IEEE 17th International Conference on Group IV Photonics (GFP)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124545578","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 : 2021-12-01DOI: 10.1109/GFP51802.2021.9673967
Ibrahim Ghannam, B. Shen, F. Merget, J. Witzens
We present an external cavity laser formed by coupling a III-V gain chip to a silicon nitride chip using an alignment tolerant multimode edge coupler, resulting in a misalignment tolerance of 12 μm. The ECL has a 42 kHz linewidth and 83 nm tuning range.
{"title":"External Cavity Laser with Alignment Tolerant III-V Gain Chip to PIC Edge Coupler in Silicon Nitride","authors":"Ibrahim Ghannam, B. Shen, F. Merget, J. Witzens","doi":"10.1109/GFP51802.2021.9673967","DOIUrl":"https://doi.org/10.1109/GFP51802.2021.9673967","url":null,"abstract":"We present an external cavity laser formed by coupling a III-V gain chip to a silicon nitride chip using an alignment tolerant multimode edge coupler, resulting in a misalignment tolerance of 12 μm. The ECL has a 42 kHz linewidth and 83 nm tuning range.","PeriodicalId":158770,"journal":{"name":"2021 IEEE 17th International Conference on Group IV Photonics (GFP)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124986044","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 : 2021-12-01DOI: 10.1109/GFP51802.2021.9673920
Lucía Castelló-Pedrero, M. Gómez-Gómez, J. García-Rupérez, A. Griol, Alejandro Martínez
In this work, we demonstrate photonic biosensing using silicon nitride ring resonators operated in the TM mode around 1310 nm wavelengths. This results in an increased sensitivity in comparison with the typically used TE mode.
{"title":"Sensitivity increase of silicon nitride ring resonator biosensor operated in the TM mode at 1310 nm","authors":"Lucía Castelló-Pedrero, M. Gómez-Gómez, J. García-Rupérez, A. Griol, Alejandro Martínez","doi":"10.1109/GFP51802.2021.9673920","DOIUrl":"https://doi.org/10.1109/GFP51802.2021.9673920","url":null,"abstract":"In this work, we demonstrate photonic biosensing using silicon nitride ring resonators operated in the TM mode around 1310 nm wavelengths. This results in an increased sensitivity in comparison with the typically used TE mode.","PeriodicalId":158770,"journal":{"name":"2021 IEEE 17th International Conference on Group IV Photonics (GFP)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123457983","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 : 2021-12-01DOI: 10.1109/GFP51802.2021.9673960
V. Falcone, A. Ballabio, A. Barzaghi, C. Zucchetti, L. Anzi, J. Frigerio, F. Bottegoni, P. Biagioni, G. Isella
Ge-on-Si micro-crystals grown on Si patterned substrates can be used as absorbing elements for photodetection in the near-infrared. In such microstructures light confinement effects, due to crystal faceting and pattern periodicity, enhance light absorption as compared to conventional epitaxial layers. The challenge in realizing this type of devices is the formation of a top transparent contact suspended on the microcrystal array. Graphene can be used as a suspended contact that can adapt to the 3D-morphology of the microcrystals, ensuring the formation of an electrically continuous layer. The fabricated devices feature a responsivity exceeding that of planar devices with comparable thickness.
{"title":"Ge micro-crystals photedetectors with enhanced infrared responsivity","authors":"V. Falcone, A. Ballabio, A. Barzaghi, C. Zucchetti, L. Anzi, J. Frigerio, F. Bottegoni, P. Biagioni, G. Isella","doi":"10.1109/GFP51802.2021.9673960","DOIUrl":"https://doi.org/10.1109/GFP51802.2021.9673960","url":null,"abstract":"Ge-on-Si micro-crystals grown on Si patterned substrates can be used as absorbing elements for photodetection in the near-infrared. In such microstructures light confinement effects, due to crystal faceting and pattern periodicity, enhance light absorption as compared to conventional epitaxial layers. The challenge in realizing this type of devices is the formation of a top transparent contact suspended on the microcrystal array. Graphene can be used as a suspended contact that can adapt to the 3D-morphology of the microcrystals, ensuring the formation of an electrically continuous layer. The fabricated devices feature a responsivity exceeding that of planar devices with comparable thickness.","PeriodicalId":158770,"journal":{"name":"2021 IEEE 17th International Conference on Group IV Photonics (GFP)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129367506","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 : 2021-12-01DOI: 10.1109/GFP51802.2021.9673870
F. A. Armand Pilon, Y. Niquet, J. Chrétien, N. Pauc, V. Reboud, V. Calvo, J. Widiez, J. Hartmann, A. Chelnokov, J. Faist, H. Sigg
The realization of a laser on silicon (Si) from group IV materials is a long-cherished wish of the semiconductor industry; it would enable the mass production of photonic systems at low cost. However, the path towards an efficient light emitter requires material with a direct band gap, in line with all the typical group III-V lasers platforms [1]-[4]. Such configuration can be achieved by loading Ge with tensile strain [5] by alloying with Sn [6] or both [7], [8]. Here, we demonstrate steady state lasing at low temperature in strained germanium microbridges and establish this finding as a fundamental probe for the conduction band line-up between the Γ and L minima.
{"title":"Steady state lasing in strained germanium microbridges as fundamental measure for the crossover to direct band gap","authors":"F. A. Armand Pilon, Y. Niquet, J. Chrétien, N. Pauc, V. Reboud, V. Calvo, J. Widiez, J. Hartmann, A. Chelnokov, J. Faist, H. Sigg","doi":"10.1109/GFP51802.2021.9673870","DOIUrl":"https://doi.org/10.1109/GFP51802.2021.9673870","url":null,"abstract":"The realization of a laser on silicon (Si) from group IV materials is a long-cherished wish of the semiconductor industry; it would enable the mass production of photonic systems at low cost. However, the path towards an efficient light emitter requires material with a direct band gap, in line with all the typical group III-V lasers platforms [1]-[4]. Such configuration can be achieved by loading Ge with tensile strain [5] by alloying with Sn [6] or both [7], [8]. Here, we demonstrate steady state lasing at low temperature in strained germanium microbridges and establish this finding as a fundamental probe for the conduction band line-up between the Γ and L minima.","PeriodicalId":158770,"journal":{"name":"2021 IEEE 17th International Conference on Group IV Photonics (GFP)","volume":"8 7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131996152","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 : 2021-09-28DOI: 10.36227/techrxiv.16658989.v1
Chenglin L. Xu, E. Heller, M. Bahl, R. Scarmozzino, Kai-Ning Ku, Ying Zhou, Tungyu Su, Po-Chih Chang, Chen-Yu Lin, Shang-Chun Chen, Chih-Lin Wang, Chien-Chung Lin
Validated both numerically and experimentally, Beam Propagation Method (BPM) has been proven to be a very efficient and reasonably accurate simulation approach for silicon photonics (SiP). This paper clears up some misunderstanding in this community that BPM is not suitable for SiP.
{"title":"Suitability of BPM Simulation for Silicon Photonics","authors":"Chenglin L. Xu, E. Heller, M. Bahl, R. Scarmozzino, Kai-Ning Ku, Ying Zhou, Tungyu Su, Po-Chih Chang, Chen-Yu Lin, Shang-Chun Chen, Chih-Lin Wang, Chien-Chung Lin","doi":"10.36227/techrxiv.16658989.v1","DOIUrl":"https://doi.org/10.36227/techrxiv.16658989.v1","url":null,"abstract":"Validated both numerically and experimentally, Beam Propagation Method (BPM) has been proven to be a very efficient and reasonably accurate simulation approach for silicon photonics (SiP). This paper clears up some misunderstanding in this community that BPM is not suitable for SiP.","PeriodicalId":158770,"journal":{"name":"2021 IEEE 17th International Conference on Group IV Photonics (GFP)","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132779757","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}
Juliana Müller, Andrea Zazzi, Gayatri Vasudevan Rajeswari, A. Moscoso-Mártir, A. T. Mashayekh, A. D. Das, F. Merget, J. Witzens
We present optimized hourglass-shaped resonator CROW filters showing an improved power consumption of up to 30% when compared with standard circular ring shapes. Metal and doped waveguide heaters are compared in terms of efficiency, crosstalk and insertion losses.
{"title":"Optimized hourglass-shaped resonators for efficient thermal tuning of CROW filters with reduced crosstalk","authors":"Juliana Müller, Andrea Zazzi, Gayatri Vasudevan Rajeswari, A. Moscoso-Mártir, A. T. Mashayekh, A. D. Das, F. Merget, J. Witzens","doi":"10.31224/osf.io/vr94e","DOIUrl":"https://doi.org/10.31224/osf.io/vr94e","url":null,"abstract":"We present optimized hourglass-shaped resonator CROW filters showing an improved power consumption of up to 30% when compared with standard circular ring shapes. Metal and doped waveguide heaters are compared in terms of efficiency, crosstalk and insertion losses.","PeriodicalId":158770,"journal":{"name":"2021 IEEE 17th International Conference on Group IV Photonics (GFP)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130314771","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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