OPTIMIZATION OF COHERENT LIDAR PERFORMANCE WITH GRADED-REFLECTANCE TRANSMITTER RESONATOR OPTICS IN THE LOW EQUIVALENT FRESNEL NUMBER REGIME

摘要

Using a diffractive eigenmode treatment to model the laser output we show that graded-reflectance resonator optics offer significant efficiency benefits over conventional hard-edge coupled unstable resonators in the context of coherent detection lidar applications. Extending previous research pertinent to the high equivalent Fresnel number regime, we have modeled the optimum performance of a notional super-Gaussian coupled cavity as a function of the key resonator parameters in the low equivalent Fresnel number (<3) regime. The findings from this study are applicable to the design of coherent lidar transmitters operated within this regime. (C) 1996 Optical Society of America [References: 16]