A driver circuit of a laser diode (101). The laser diode has a first electrode structure (101a, 101c) for injecting a first drive current (Is) with a first magnitude and a second electrode structure (101b) separated from the first electrode structure for injecting a second drive current ...
20110280265DRIVER CIRCUIT FOR THE DIRECT MODULATION OF A LASER DIODENovember, 2011Desbiens et al. 20050259699Tuneable laserNovember, 2005Zakhleniuk et al. 20150016479LASER APPARATUS WITH BEAM TRANSLATIONJanuary, 2015Mcdonagh 20150098483DIODE-PUMPED NANO-STRUCTURE LASERApril, 2015Beach et al. ...
(e) Schematic design of the CMOS circuit. TA: Tuning A, TB: Tuning B, DI: Data Input, VDD: Voltage Drain Drain, VSS: Voltage Source Source, GND: Ground. Full size image As laser diodes generally have an input impedance of around 50 Ω, a driver is needed to achieve a high ...
As shown in Figure 3b, the shock tube was comprised a high-pressure section, a low-pressure section, a gas circuit, and an electronically controlled diaphragm. Prior to each test, the low-pressure section was charged with air to a preset pressure. Following this, the high-pressure section ...
The miniaturized TDLAS system (Figure 2b) had dimensions 30 (L) * 14 (W) * 7 (H) cm3, and consists of a diode laser source, laser driver (temperature & current control modules), a linear current/frequency scanning circuit, photodetector circuits, and more [12]. One DFB (distributed-fee...
The BoosTA pro head includes a high-bandwidth current modulation board, which – when used in a closed feedback loop – allows for compensating power fluctuations of the master laser by adjusting the amplifier gain. The board also features a protective circuit to avoid the risk of electronic ch...
A driver circuit of a laser diode (101). The laser diode has a first electrode structure (101a, 101c) for injecting a first drive current (Is) with a first magnitude and a second electrode structure (101b) separated from the first electrode structure for injecting a second drive current ...
PURPOSE:To enable a laser drive device to keep a laser constant in FM modulation and to control it in output light intensity by a method wherein currents fed to three or more distributed feedback lasers common in an optical axis at least excluding one are kept constant in an intensity ...
The invention discloses a special circuit for signal generation in TDLAS (Tunable Diode Laser Absorption Spectroscopy). The special circuit comprises an MCU (Microprogrammed Control Unit) minimum system module, the MCU minimum system module is connected with a signal generator, the signal generator ...
The ethylene detecting device comprises a modulating signal generator, a laser driver, a laser, a collimator, a gas absorption tank, a detector, a prefixed amplifying circuit, a phase-locked amplifier, a data acquisition card and a computer module, wherein the laser driver is used for ...