Title :
Coherent phase modulation detection for self-heterodyne phase noise measurement
Author :
Huynh, Tam N. ; Lim Nguyen ; Kai Shi ; Barry, Liam P.
Author_Institution :
Rince Inst., Dublin City Univ., Dublin, Ireland
Abstract :
We present coherent phase modulation detection for laser phase noise measurement via a self-heterodyne technique. Measurements have been performed for DFB and SGDBR lasers to demonstrate the technique. The results show that DFB laser phase noise is well described by the random-walk phase fluctuation while SGDBR has additional frequency fluctuation due to 1/f noise below 100 MHz that significantly broadens the linewidth.
Keywords :
1/f noise; distributed Bragg reflector lasers; distributed feedback lasers; laser noise; laser variables measurement; light coherence; noise measurement; optical modulation; phase modulation; phase noise; spectral line broadening; 1/f noise; DFB lasers; SGDBR lasers; coherent phase modulation detection; laser phase noise measurement; linewidth broadening; random walk phase fluctuation; self-heterodyne phase noise measurement; Digital signal processing; Generators; Optical amplifiers;
Conference_Titel :
Communications and Photonics Conference and Exhibition, 2011. ACP. Asia
Conference_Location :
Shanghai
Print_ISBN :
978-0-8194-8961-6
