Tunable Violet Laser Diode System for Optical Wireless Communication

Tunable Diode-pumped-lna Laser

Diode-pumped crystals provided recently new compact laser devices. We report the first end pumping of a La Ndl-xMgAEl,Ol,(LNA) crystal using a 200mW diode array (Spectra Diode Lab). We also rgport the first results obtained with a ImW diode (SONY). This C.W. laser can be tuned from 1.048~ to 1.086pm. Without selective elements in the cavity, the laser emits around 1.054pm with a threshold of 24...

Tunable Dual-Wavelength Laser Scheme by Optical-Injection Fabry-Perot Laser Diode

Airborne tunable diode laser measurements of formaldehyde

Accurate measurements of formaldehyde (CH2O) in the atmosphere are essential to further our understanding of various atmospheric cycles involving hydrogen and carbon-containing species. Comparisons among independent measurements of this gas and between measurements and model calculations have raised numerous questions regarding the veracity of both endeavors. The present paper describes a long-...

Tunable Diode Laser Absorption Spectroscopy of Oxygen

Balloon-borne tunable diode laser absorption spectrometer

A balloon-borne tunable diode laser absorption spectrometer capable of in situ measurement of the concentrations of several stratospheric trace gases simultaneously in the same parcel of air is described. Laboratory tests show present detection limits of 1.5 ppbv for NO and 0.5 ppbv for N02 under stratospheric conditions. This instrumentwas flown in July 1983 to make the first tunable diode las...