Title :
Stabilizing LD power in wide temperature range by means of optical filter
Author :
Yoo, Jin-Ho ; Chung, Nack-Jin ; Yang, Gil-Ho ; Park, In-Shik
Author_Institution :
Optoelectron. Device Lab., LG Cable & Machinery Ltd., Kyungki, South Korea
Abstract :
We propose an optical power stabilized LD module without APC circuit and monitor PD. It utilizes the temperature dependence of the LD wavelength. With the designed filter, the power penalty 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 70/spl deg/C in 1.3 /spl mu/m InGaAsP/InP FP MQW LD. We also demonstrate the method by means of the fiber-coupler-filter.
Keywords :
Fabry-Perot resonators; III-V semiconductors; gallium arsenide; gallium compounds; indium compounds; laser accessories; laser beams; laser cavity resonators; laser stability; optical fabrication; optical filters; optical losses; quantum well lasers; 1.3 mum; 15 C; 70 C; InGaAsP-InP; InGaAsP/InP FP MQW LD; InGaAsP/InP Fabry-Perot multiple quantum well laser diode; designed filter; fiber-coupler-filter; laser diode power; laser diode wavelength; operating temperature range; optical filter; optical power stabilized laser diode module; optical signal power level reduction; power penalty; power penalty suppression; temperature dependence; wide temperature range; Circuits; Indium phosphide; Monitoring; Optical design; Optical fiber filters; Optical filters; Power filters; Signal design; Temperature dependence; Temperature distribution;
Conference_Titel :
Communications, 1999. APCC/OECC '99. Fifth Asia-Pacific Conference on ... and Fourth Optoelectronics and Communications Conference
Conference_Location :
Beijing, China
Print_ISBN :
7-5635-0402-8
DOI :
10.1109/APCC.1999.820539
