Title :
Quantum noise-suppressed operation of TJS and SQW ridge-waveguide laser diodes in photon transistor configurations
Author :
Edwards, P.J. ; Cheung, W.N. ; Uddin, A. ; Kumar, G. Ganesh ; Tanaka, K. ; Morita, T. ; Kan, H. ; Yamamoto, Y.
Author_Institution :
Centrefor Adv. Telecommun. & Quantum Electron. Res., Univ. of Canberra, ACT, Australia
Abstract :
We report the first successful incorporation of shot noise-suppressed laser diodes in a closed-loop photon transistor amplifier configuration. We have measured and modelled the current gain, bandwidth and noise level of transverse junction stripe and quantum well laser diodes in open loop (optocoupler) and closed loop (common-emitter) photon transistor configurations. At liquid nitrogen temperatures we have directly measured 4.5 dB suppression of photonic noise below the full shot noise level.
Keywords :
integrated optics; laser noise; quantum well lasers; ridge waveguides; semiconductor lasers; shot noise; waveguide lasers; 4.5 dB; SQW ridge-waveguide laser diodes; TJS ridge-waveguide laser diodes; bandwidth; closed-loop common emitter photon transistor amplifier configuration; current gain; model; noise level; open loop optocoupler photon transistor configuration; photonic noise; quantum noise-suppressed operation; semiconductor quantum well laser diode; shot noise-suppressed laser diodes; transverse junction stripe laser diode; Coupling circuits; Detectors; Diode lasers; Gain measurement; Laser feedback; Laser noise; Noise level; Photonics; Positron emission tomography; Transistors;
Conference_Titel :
Optoelectronic and Microelectronic Materials and Devices, 2000. COMMAD 2000. Proceedings Conference on
Print_ISBN :
0-7803-6698-0
DOI :
10.1109/COMMAD.2000.1022901
