gain in the for the optical fiber communication applications interesting 1.5-mum region were only conducted about two years ago, there is reason to believe that substantial progress may be made in the future, perhaps involving "holey fibers" to further enhance the nonlinearity and thus the gain....
maser- an acronym for microwave amplification by stimulated emission of radiation; an amplifier that works on the same principle as a laser and emits coherent microwave radiation P.A.,P.A. system,PA system,public address system,PA- an electronic amplification system used as a communication system...
Amplification of high signal gain (36 dB, approximately 4000 times) and high output power (1200 W) was achieved in a Rhodamine B (RB)-doped graded-index (G... TAGAYA,Akihiro,KOBAYASHI,... - 《Japanese Journal of Applied Physics》 被引量: 127发表: 1997年 High-power polymer optical fiber...
The authors review recent advances in SOAs (semiconductor optical amplifiers) and some of their applications. SOAs are under rapid development to achieve polarization independent gain, low facet reflectivities, good coupling to optical fibers, and high saturation power. The package SOA can be made ...
Optical amplifiers and their applications In the past few years research into all-optical amplification has been intensified. The performance expectations of both semiconductor and fibre amplifiers... MJ O'Mahony - Optical Society of America 被引量: 195发表: 1990年 Performance limits of delay lines...
circuit or a resonant crystal, and must have sufficient gain to offset the attenuation of the frequency determining section and must also introduce the degree of phase shift required by this section. (5) Filters can be categorized, in terms of their frequency characteristics, into four groups. ...
New millivolt-amplifiers (mV-amplifiers) driving planar multijunction thermal converters (PMJTCs) at their output have been developed to measure the output voltage of micropotentiometers (mupots). Using a twin-stage design with gains of 10, 20, and 30 per stage, total gain factors ranging from...
The amplified signal/idler pulses passed through a long-pass filter to suppress the 800 nm pump, and their spectra were measured with a thermoelectrically cooled InGaAs array detector (Ocean Optics NIR256-2.5). The signal/idler, as well as pump beam power values were measured with a ...
Many musicians also use different guitar pedals and effects between an amplifier and the guitar. It allows them to get a special kind of sound that benefits their music. By the way, if you're hunting the best electric guitar to pair with an amp or thinking about mastering a ukulele, take...
Because comparators are rarely configured with negative feedback, their (differential) input impedance is not multiplied by loop gain, as is characteristic of op amp circuits. As a result, the input signal sees a changing load and changing (small) input current as the comparator switches. Therefo...