| Thermal resistance reduction in high power superluminescent diodes by using active multi-mode interferometer Z Zang, K Mukai, P Navaretti, M Duelk, C Velez, K Hamamoto Applied Physics Letters 100 (3), 2012 | 160 | 2012 |
| High-Power (mW) Superluminescent Diodes by Using Active Multimode Interferometer Z Zang, T Minato, P Navaretti, Y Hinokuma, M Duelk, C Velez, ... IEEE Photonics Technology Letters 22 (10), 721-723, 2010 | 142 | 2010 |
| 1.55-μm wavelength-selectable microarray DFB-LD's with monolithically integrated MMI combiner, SOA, and EA-modulator K Kudo, K Yashiki, T Sasaki, Y Yokoyama, K Hamamoto, T Morimoto, ... IEEE Photonics Technology Letters 12 (3), 242-244, 2000 | 126 | 2000 |
| Bistable element K Hamamoto US Patent 8,774,572, 2014 | 94 | 2014 |
| High power and stable high coupling efficiency (66%) superluminescent light emitting diodes by using active multi-mode interferometer Z Zang, K Mukai, P Navaretti, M Duelk, C Velez, K Hamamoto IEICE transactions on electronics 94 (5), 862-864, 2011 | 78 | 2011 |
| First 8* 8 semiconductor optical matrix switches using GaAs/AlGaAs electro-optic guided-wave directional couplers K Hamamoto, T Anan, K Komatsu, M Sugimoto, I Mito Electronics Letters 5 (28), 441-443, 1992 | 62 | 1992 |
| 4* 4 gaas/AlGaAs optical matrix switches with uniform device characteristics using alternating Delta beta electrooptic guided-wave directional couplers K Komatsu, K Hamamoto, M Sugimoto, A Ajisawa, Y Kohga, A Suzuki Journal of lightwave technology 9 (7), 871-878, 1991 | 54* | 1991 |
| Light wavelength filtering circuit and manufacturing method thereof K Komatsu, M Hayashi, K Hamamoto, T Sasaki, T Takeuchi US Patent 5,841,929, 1998 | 48 | 1998 |
| Wavelength-selectable microarray light sources of multiple ranges simultaneously fabricated on single wafer K Kudo, T Morimoto, K Yashiki, T Sasaki, Y Yokoyama, K Hamamoto, ... Electronics Letters 36 (8), 745-747, 2000 | 36 | 2000 |
| Extremely low loss 4ื 4 GaAs/AlGaAs optical matrix switch K Hamamoto, S Sugou, K Komatsu, M Kitamura Integrated Photonics Research, ITuA2, 1993 | 35 | 1993 |
| Insertion-loss-free 2ื 2 InGaAsP/InP optical switch fabricated using bandgap energy controlled selective MOVPE K Hamamoto, K Komatsu Electronics Letters 31 (20), 1779-1781, 1995 | 30 | 1995 |
| First demonstration of novel active multi-mode interferometer (MMI) LDs integrated with 1st order-mode permitted waveguides K Hamamoto, J De Merlier, M Ohya, K Shiba, K Naniwae, S Sudo, ... IEICE Electronics Express 2 (13), 399-403, 2005 | 25 | 2005 |
| Spot-size converter integrated semiconductor optical amplifiers for optical gate applications S Kitamura, H Hatakeyama, K Hamamoto, T Sasaki, K Komatsu, ... IEEE journal of quantum electronics 35 (7), 1067-1074, 1999 | 25 | 1999 |
| Single-transverse-mode active multi-mode-interferometer 1.45 μm high power laser diode K Hamamoto, E Gini, C Holtmann, H Melchior Applied Physics B 73, 571-574, 2001 | 24 | 2001 |
| Single-transverse-mode active-MMI 1.5 μm InGaAsP buried-hetero laser diode K Hamamoto Europ. Conf. Integ. Opt.(ECIO 1997, Stockholm, Sweden), Proc. of …, 1997 | 24 | 1997 |
| A transceiver PIC for bidirectional optical communication fabricated by bandgap energy controlled selective MOVPE T Takeuchi, T Sasaki, M Hayashi, K Hamamoto, K Makita, K Taguchi, ... IEEE Photonics Technology Letters 8 (3), 361-363, 1996 | 24 | 1996 |
| Semiconductor optical integrated circuits and method for fabricating the same T Sasaki, M Kitamura, K Hamamoto, S Kitamura, K Komatsu, Y Sakata US Patent 5,770,466, 1998 | 23 | 1998 |
| Single transverse mode active multimode interferometer InGaAsP/InP laser diode K Hamamoto, E Gini, C Holtmann, H Melchior Electronics Letters 34 (5), 462-464, 1998 | 23 | 1998 |
| Semiconductor optical integrated circuits T Sasaki, M Kitamura, K Hamamoto, S Kitamura, K Komatsu, Y Sakata US Patent 5,565,693, 1996 | 23 | 1996 |
| Amplifier-assisted CRDS (cavity ring-down spectroscopy) toward compact breath sensing W Li, Y Han, Z Chen, H Jiang, K Hamamoto Japanese journal of applied physics 58 (SJ), SJJD01, 2019 | 20 | 2019 |
