Page 163 - Tunable Lasers Handbook
P. 163
SERVO VARY PRESSURE FOR SHIFT MEASUREMENTS
ELECTRONICS -
- lnSn - LO W-PR ESSU R E
CO, STABILIZING CELL
DETECTOR J
h LASER 1. ISOTOPE 1
ELECTRONICS
LOW-PRESSURE
CO, STABILIZING CELL
I
LOCAL OSCILLATOR
BEAT FREQUENCY
6 = PRESSURE SHIFT
vo = v, - v2
FIGURE 2 1 Bid diagram of the improved two-chaiiiiel line-ceilter-stabili7.ed co, laser heterodyne system used to rneasiire pressure shifts. (Reprinted
with permission fioni Sool-loo c/ ul. (761. 0 19x5 IEEE.)
