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Roger Helkey
Roger Helkey
Adresse e-mail validée de iee.ucsb.edu
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Short pulse generation using multisegment mode-locked semiconductor lasers
DJ Derickson, RJ Helkey, A Mar, JR Karin, JG Wasserbauer, JE Bowers
IEEE Journal of Quantum Electronics 28 (10), 2186-2202, 1992
3601992
Global positioning system receiver digital processing technique
RG Lorenz, RJ Helkey, KK Abadi
US Patent 5,293,170, 1994
2961994
Techniques and performance of intensity-modulation direct-detection analog optical links
C Cox, E Ackerman, R Helkey, GE Betts
IEEE Transactions on Microwave theory and techniques 45 (8), 1375-1383, 1997
2771997
Global positioning system receiver digital processing technique
RG Lorenz, RJ Helkey, KK Abadi
US Patent 5,134,407, 1992
2261992
Global positioning system receiver with improved radio frequency and digital processing
J Ashjaee, RJ Helkey, RG Lorenz, RA Sutherland
US Patent 4,928,106, 1990
1911990
Sparse aperiodic arrays for optical beam forming and LIDAR
T Komljenovic, R Helkey, L Coldren, JE Bowers
Optics express 25 (3), 2511-2528, 2017
1602017
Micro-electro-mechanical-system (MEMS) mirror device
J Bowers, R Helkey, C Corbalis, R Sink, S Lee, N MacDonald
US Patent App. 09/497,270, 2002
1412002
Optical cross-connect switch with integrated optical signal tap
R Helkey, J Bowers, T Walter, K Yamada, D Welsh
US Patent 6,668,108, 2003
1262003
Ultrafast dynamics in field‐enhanced saturable absorbers
JR Karin, RJ Helkey, DJ Derickson, R Nagarajan, DS Allin, JE Bowers, ...
Applied Physics Letters 64 (6), 676-678, 1994
1171994
2D optical switch
MJ Little, JJ Lyon, JE Bowers, R Helkey
US Patent 6,396,976, 2002
1112002
Three-dimensional MEMS photonic cross-connect switch design and performance
X Zheng, V Kaman, S Yuan, Y Xu, O Jerphagnon, A Keating, ...
IEEE Journal of Selected Topics in Quantum Electronics 9 (2), 571-578, 2003
1022003
Phase-encoded optical sampling for analog-to-digital converters
JC Twichell, R Helkey
IEEE Photonics Technology Letters 12 (9), 1237-1239, 2000
1012000
Method and apparatus for network diagnostics in a passive optical network
RJ Helkey, V Kaman
US Patent App. 12/148,913, 2009
892009
A down-conversion optical link with RF gain
R Helkey, JC Twichell, C Cox
Journal of lightwave technology 15 (6), 956-961, 1997
821997
Mode-locked operation of a master oscillator power amplifier
A Mar, R Helkey, J Bowers, D Mehuys, D Welch
IEEE photonics technology letters 6 (9), 1067-1069, 1994
741994
Multi-wavelength selective crossbar switch
ASP Khope, M Saeidi, R Yu, X Wu, AM Netherton, Y Liu, Z Zhang, Y Xia, ...
Optics express 27 (4), 5203-5216, 2019
682019
Dynamic detuning in actively mode-locked semiconductor lasers
PA Morton, RJ Helkey, JE Bowers
IEEE journal of quantum electronics 25 (12), 2621-2633, 1989
671989
High-performance photonic integrated circuits on silicon
R Helkey, AAM Saleh, J Buckwalter, JE Bowers
IEEE Journal of Selected Topics in Quantum Electronics 25 (5), 1-15, 2019
602019
A 32-element 8-bit photonic true-time-delay system based on a 288 x 288 3-D MEMS optical switch
V Kaman, X Zheng, RJ Helkey, C Pusarla, JE Bowers
IEEE Photonics Technology Letters 15 (6), 849-851, 2003
602003
Micro-electro-mechanical-system (MEMS) mirror device and methods for fabricating the same
JE Bowers, RJ Helkey, C Corbalis, RK Sink, SB Lee, N MacDonald
US Patent 6,563,106, 2003
582003
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