Title :
Frequency stabilization of laser diodes using 1.51-1.55 μm absorption lines of 12C2H2 and 13 C2
Author :
Sakai, Yoshihisa ; Sudo, Shoichi ; Ikegami, Tetsuhiko
Author_Institution :
NTT Opto-Electron. Lab., Kanagawa, Japan
fDate :
1/1/1992 12:00:00 AM
Abstract :
Frequency stabilization of a 1.55 μm DFB laser diode is demonstrated using vibrational-rotational absorption of 12C 2H2 and 13C2H2 molecules (named VRAM). Frequency stability within 2 MHz peak to peak fluctuation can be achieved in the wavelength region of 1.51-1.55 μm. Frequency-stabilized DFB laser compact modules have been constructed. Frequency stabilities are evaluated by measuring the beat spectrum of the two lasers. In addition, the temperature and pressure dependences of the acetylene absorption lines are characterized
Keywords :
distributed feedback lasers; infrared spectra of organic molecules and substances; laser frequency stability; molecular rotation-vibration; organic compounds; 1.51 to 1.55 micron; DFB laser diode; VRAM; acetylene absorption lines; beat spectrum; distributed feedback; ethylene; laser compact modules; laser diode frequency stabilisation; molecular IR absorption lines; peak to peak fluctuation; pressure dependences; temperature dependence; vibrational-rotational absorption; Absorption; Atom optics; Atomic beams; Diode lasers; Frequency measurement; Frequency shift keying; Gas lasers; Laser stability; Nonlinear optics; Optical harmonic generation;
Journal_Title :
Quantum Electronics, IEEE Journal of
