Noise reduction of tunable laser based on mutual injection-locked reflective semiconductor optical amplifiers

作者：Ku H D^*; Park C S

来源：Optik, 2014, 125(9): 2031-2035.

DOI：10.1016/j.ijleo.2013.06.103

• Optical fiber laser
• Gain-saturated RSOA
• Mutual injection locking
• RIN reduction
• CNR improvement

A tunable laser source based on mutual injection-locked reflective semiconductor optical amplifiers (MIL-RSOAs) using a tunable bandpass filter was investigated to reduce relative-intensity noise (RIN) and improve the carrier-to-noise ratio (CNR) without additional optoelectronic compensation. Compared with laser based on self-injection-locked RSOAs (SIL-RSOAs), the laser based on MIL-RSOAs reduced RIN by as much as 16 dB and improved CNR by as much as 20 dB. The proposed method improved sensitivity for 1.25 Gb/s transmission by %26gt;15 dB compared with using traditional laser based on SIL-RSOAs.

• 出版日期2014