Valentin A, Nicolas C, Henry L, Mantz A W
Appl Opt. 1987 Jan 1;26(1):41-6. doi: 10.1364/AO.26.000041.
A tunable diode laser beam is sent through a Michelson interferometer and is locked to a fringe of the diode laser interference pattern by controlling the diode laser polarization current. The path difference change of the Michelson interferometer is controlled step by step by a stabilized He-Ne red laser. When the interferometer path difference increases or decreases, the polarization current of the diode is forced to change in order to preserve the interference order of the diode beam. At every step the diode frequency is accurately fixed and its phase noise significantly reduced.
可调谐二极管激光束通过迈克尔逊干涉仪发射，并通过控制二极管激光偏振电流锁定到二极管激光干涉图案的一个条纹上。迈克尔逊干涉仪的光程差变化由稳定的氦氖红色激光逐步控制。当干涉仪光程差增加或减少时，二极管的偏振电流被迫改变，以保持二极管光束的干涉级次。在每一步中，二极管频率都被精确锁定，其相位噪声显著降低。
