| Presentation | 2000/1/18 Simulation of ultrafast optical gate utilizing intersubband transition in GaN Nobuo Suzuki, Norio Iizuka, Kei Kaneko, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Optical gating of sub-picosecond pulses in nonlinear optical waveguides utilizing the saturation of intersubband absorption in AlGaN/GaN multiple quantum wells has been simulated by a finite-difference time-domain (FD-TD) method. Carrier dynamics were taken into the calculation by rate equations. In order to suppress the deformation of the signal pulse, the widths of the control pulse should be broader than that of the signal pulse. In the case where 1.6-μm, 100-fs, 10-pJ signal pulses are switched by 1.5-μm, 300-fs, 200-pJ control pulses, for example, the output pulse width and the extinction ratio were calculated to be 140 fs and 16 dB, respectively. In order to switch 100-fs optical pulses with an adequate margin, the absorption spectrum should be broadened. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | optical switches / intersubband transition / saturable absorption / recovery time / FDTD / GaN |
| Paper # | PS99-64, OPE99-112, LQE99-103 |
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| Conference Information | |
| Committee | LQE |
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| Conference Date | 2000/1/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
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| Paper Information | |
| Registration To | Lasers and Quantum Electronics (LQE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Simulation of ultrafast optical gate utilizing intersubband transition in GaN |
| Sub Title (in English) | |
| Keyword(1) | optical switches |
| Keyword(2) | intersubband transition |
| Keyword(3) | saturable absorption |
| Keyword(4) | recovery time |
| Keyword(5) | FDTD |
| Keyword(6) | GaN |
| 1st Author's Name | Nobuo Suzuki |
| 1st Author's Affiliation | Corporate Research and Development Center, Toshiba Corp.() |
| 2nd Author's Name | Norio Iizuka |
| 2nd Author's Affiliation | Corporate Research and Development Center, Toshiba Corp. |
| 3rd Author's Name | Kei Kaneko |
| 3rd Author's Affiliation | Corporate Research and Development Center, Toshiba Corp. |
| Date | 2000/1/18 |
| Paper # | PS99-64, OPE99-112, LQE99-103 |
| Volume (vol) | vol.99 |
| Number (no) | 545 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |