Frequency stabilization of a tunable erbium-doped fiber laser.

A single-frequency Er-doped fiber laser that is tunable from 1.52 to 1.58 ,microm has been constructed. The laser linewidth was determined to be less than 1.6 MHz FWHM by observing the spectrum of the beat between the fiber laser and a 1.523-microm He-Ne laser. The frequency of the fiber laser was locked to several absorption lines of acetylene near 1.53 microm. This research demonstrates the inherent stability of fiber lasers and their potential for use in a wavelength standard for optical communications.

[1]  P. Varanasi,et al.  Intensity and half-width measurements in the 1·525 μm band of acetylene☆ , 1975 .

[2]  K. Rao,et al.  Interpretation of the acetylene spectrum at 1.5 μm , 1977 .

[3]  Tsutomu Yanagawa,et al.  Frequency stabilization of 1.5‐μm InGaAsP distributed feedback laser to NH3 absorption lines , 1984 .

[4]  M. Ohtsu,et al.  Frequency stabilisation of 1.5 mu m DFB laser using internal second harmonic generation and atomic /sup 87/Rb line , 1989 .

[5]  Motoichi Ohtsu,et al.  Spectral Measurements of NH3and H2O for Pollutant Gas Monitoring by 1.5 µm InGaAsP/InP Lasers , 1983 .

[6]  Yun Chur Chung,et al.  Frequency-locking of a 1.5 mu m DFB laser to an atomic krypton line using optogalvanic effect , 1988 .

[7]  C. Zah,et al.  Frequency locking of 1.5 mu m DFB laser diode to a neon indicator lamp using the optogalvanic effect , 1989, IEEE Photonics Technology Letters.

[8]  David N. Payne,et al.  Travelling-wave erbium fibre ring laser with 60 kHz linewidth , 1990 .

[9]  T. Ikegami,et al.  Frequency stabilization of 1.55 mu m DFB laser diode using vibrational-rotational absorption of /sup 13/C/sub 2/H/sub 2/ molecules , 1989, IEEE Photonics Technology Letters.

[10]  T. Ikegami,et al.  Frequency-stabilized DFB laser module using 1.53159 mu m absorption line of C/sub 2/H/sub 2/ , 1989, IEEE Photonics Technology Letters.

[11]  C. A. Millar,et al.  Fiber Fox–Smith resonators: application to single-longitudinal-mode operation of fiber lasers , 1988 .