Title :
Stabilizing LD power in a wide temperature range for optical burst-mode communications by means of optical filter
Author :
Jin-Ho Yoo ; Nack Chung ; Gil-Ho Yang ; In-Shik Park
Author_Institution :
Optoelectron. Dev. Lab., LG Cable Ltd., Kyungki, South Korea
fDate :
7/1/2000 12:00:00 AM
Abstract :
We propose an optical power stabilized LD module without APC circuit and monitor photodiode (PD) for optical burst-mode communications. It utilizes the temperature dependence of LD wavelength. With the designed filter, the power drop is suppressed to 0 dB at full operating temperature range and the optical signal power level reduction is only 1.2 dB at 15/spl deg/C and 0 dB at 700/spl deg/C in 1.3 μm InGaAsP-InP FP MQW LD. The method is demonstrated by using fiber-coupler-filter, and the modulation characteristics are measured.
Keywords :
III-V semiconductors; gallium arsenide; gallium compounds; indium compounds; laser stability; modules; optical communication equipment; optical fibre couplers; optical fibre filters; photodiodes; quantum well lasers; 1.3 mum; 15 C; 70 C; APC circuit; InGaAsP-InP; InGaAsP-InP FP MQW LD; LD power stabilisation; designed filter; fiber-coupler-filter; full operating temperature range; laser diode power; modulation characteristics; monitor PD; monitor photodiode; optical burst-mode communications; optical filter; optical power stabilized LD module; optical signal power level reduction; power drop; temperature dependence; wide temperature range; Circuits; Monitoring; Optical design; Optical fiber filters; Optical filters; Photodiodes; Power filters; Signal design; Temperature dependence; Temperature distribution;
Journal_Title :
Photonics Technology Letters, IEEE
