PURPOSE:To facilitate the monitoring of a wavelength variation in a wide range, by monitoring the wavelength variation of a laser element by a detection signal of an interference fringe of a semiconductor laser beam as caused by a difference of optical length between two optical fibers. ...
Relations are derived concerning the inherent connection between frequency deviations and the optical power wave-form of a directly modulated semiconductor laser, providing for the first time a quantitative assessment of inherent optical fibre dispersion penalties of directly modulated lasers. The relations ...
PURPOSE: A semiconductor laser device is provided to reduce oscillation wavelength variation due to temperature variations by equalizing gain and loss of the device only on regions where a reflective ratio decreases as the wavelength increases. CONSTITUTION: A semiconductor laser device at least includes...
A semiconductor laser wavelength control device capable of controlling the optical wavelength constant even if the optical output intensity of the semiconductor laser varies and per
CONSTITUTION:Currents are injected to the active layer 10 of a semiconductor laser 16 from a power supply 38. Laser beams 40 emitted from a first end face 14 on which an antireflection film 15 is shaped are passed through a lens 42, a polarizer 44, through which only a TM polarizing ...
3. Salable Sharp high quality 450nm 80mw laser diode . 4. Package details : Plastic box package, it depends on different kinds of laser diodes with different sizes.Normally 50pcs in one tray, 10 trays in one bag ,then 10 bags in one carton box. Packaging&Shipping: 1...
Semiconductor nanowire lasers are considered promising ultracompact and energy-efficient light sources in the field of nanophotonics. Although the integration of nanowire lasers onto silicon photonic platforms is an innovative path toward chip-scale optical communications and photonic integrated circuits, operat...
Cross-sectional structure of the UV-C semiconductor laser diode. Credit: 2019 Asahi Kasei Corp. and Nagoya University Previous efforts in the development of ultraviolet laser diodes had only managed to achieve emissions down to 336 nm, Sasaoka explains. ...
We demonstrate that TEM00 mode optically pumped semiconductor lasers (OPSLs) may be scaled to tens of watts in the visible wavelength range using laser cav... LE Hunziker,C Ihli,DS Steingrube - 《IEEE Journal on Selected Topics in Quantum Electronics》 被引量: 23发表: 2007年 High optical...
The use of current-modulated semiconductor lasers for optical heterodyne spectroscopy has been investigated at modulation frequencies up to 2.6 GHz. The cu... Lenth,W. - 《Quantum Electronics IEEE Journal of》 被引量: 142发表: 1984年 Recovery of Absolute Gas Absorption Line Shapes Using Tunable ...