Experimental Comparison Between Front-Side and Rear-Side Signal-Monitoring in RSOA Transistor Outline Can Modules With Monitor-Photodiode and Thermoelectric Cooler

• Published in: IEEE photonics technology letters 2010-10, Vol.22 (20), p.1527-1529
• Main Authors: Kim, Dong Churl, Kown, O-Kyun, Kim, Hyun-Soo, Choi, Byung-Seok, Kim, Ki Soo, Park, Mi-Ran, Yoon, Ki-Hong, Cho, Seung-Hyun, Lee, Sang-Soo, Hyun, Jong Woong, Oh, Dae-Kon, Song, Min-Ho, Kim, Jeong Soo
• Format: Article
• Language: English
• Subjects: Conferences; Coolers; Fiber optics; High speed optical techniques; Modules; Monitoring; Optical fibers; Optical modulation; Optical network units; Optical saturation; Passive optical network (PON); Passive optical networks; Power generation; reflective semiconductor optical amplifier (RSOA); Semiconductor devices; Semiconductor optical amplifiers; Stimulated emission; Thermoelectricity; Transistors; wavelength-division multiplexing (WDM)
• ISSN: 1041-1135; 1941-0174
• DOI: 10.1109/LPT.2010.2066556

We report on the signal monitoring characteristics in a reflective semiconductor optical amplifier (RSOA) transistor outline can with a monitor-photodiode, thermoelectric cooler, and thermistor. Because of spatial hole-burning in the RSOA cavity, a front-side signal-monitoring module exhibits wider windows and better linearity in monitor current to signal power ratio (MCSPR) than a rear-side signal-monitoring module for current variations. In C-band, the average of the MCSPR is about 0.150 A/W and the MCSPR variation on wavelength is about ±0.038 A/W.