Title :
Frequency locking of 1.5 mu m DFB laser diode to a neon indicator lamp using the optogalvanic effect
Author :
Menocal, S.G. ; Andreadakis, N. ; Patel, J.S. ; Werner, J. ; Zah, C.E. ; Lee, T.P. ; Liao, P.F.
Author_Institution :
Bellcore, Red Bank, NJ, USA
Abstract :
Many proposed applications for optical wavelength division multiplexing (WDM) networks and coherent optical communication systems require the use of a frequency-stabilized optical reference. The feasibility of producing such a reference by using the optogalvanic effect to frequency-lock a distributed feedback laser (DFB) to the atomic absorption line of a low-cost neon indicator lamp is discussed. Frequency fluctuations of the free-running laser were reduced by more than a factor of 25 to +or-16 MHz. This is the first reported use of a miniature indicator lamp to frequency-lock a semiconductor laser in the 1.5 mu m spectral window.<>
Keywords :
distributed feedback lasers; laser frequency stability; optogalvanic spectra; semiconductor junction lasers; 1.5 micron; DFB laser diode; Ne indicator lamp; atomic absorption line; free-running laser; frequency locking; frequency-stabilized optical reference; miniature indicator lamp; optogalvanic effect; semiconductor laser; spectral window; Atom optics; Diode lasers; Distributed feedback devices; Frequency; Lamps; Laser feedback; Optical feedback; Optical fiber networks; Semiconductor lasers; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
