Title :
Monolithic Adjustable Gain-Clamped Semiconductor Optical Amplifier
Author :
Akbar, Jehan ; Odedina, Opeoluwa A. ; Michie, Craig ; Andonovic, Ivan ; Kelly, Anthony E.
Author_Institution :
Dept. of Phys., Hazara Univ., Mansehra, Pakistan
Abstract :
We report a monolithic adjustable gain-clamped semiconductor optical amplifier (AGC-SOA). The device consists of two tunable gratings and a gain section and enables the gain of the SOA to be regulated without loss of saturated output power. Gain control is achieved by adjusting the wavelength overlap of two Distributed Bragg Reflector gratings positioned at either side of the active region which can be wavelength tuned by carrier injection. Gain clamped operation with adjustable gain over a range of 4 dB has been demonstrated. A maximum saturated output power of 21 dBm was obtained.
Keywords :
diffraction gratings; distributed Bragg reflector lasers; gain control; laser tuning; optical losses; semiconductor optical amplifiers; AGC-SOA; active region; carrier injection; distributed Bragg reflector gratings; gain clamped operation; gain control; gain section; maximum saturated output power; monolithic adjustable gain-clamped semiconductor optical amplifier; tunable gratings; wavelength overlap; Gain; Gratings; Integrated optics; Optical polarization; Passive optical networks; Semiconductor optical amplifiers; Gain modulation; Psat; monolithic integration; semiconductor optical amplifier;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2013.2271790
