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The Newport 8000 4 channel Modular Mainframe Controller accepts: Temperature Controller (TEC) Modules; 40 Watt (5A/8V), ultra stable bipolar output. Thermistor, AD590, LM335, and Pt RTD sensors. Dual Temperature Controller Modules; Two independent outputs per module. 2.5 Amps at 6 Volts (15 Watt). Laser Diode Driver (LDD) Modules; 200 mA to 6 Amp low noise outputs. External analog modulation. Adjustable photodiode bias voltage. Comprehensive laser diode protection features. MOPA Laser Diode Driver Module; 500 mA LDD for master oscillator section. 4 Amp LDD for power amplifier section. Connector for TEC module input. Combination LDD/TEC Modules; Internal function generator, (Waveforms: Sine & square wave. Frequency Range: 200 Hz to 2 kHz and 200 Hz to 2 kHz). 2.5 Amps at 6 Volts (15 Watt) highly stable TEC. 200 mA to 2 Amp low noise LDD. Dual Laser Diode Driver (LDD) Module; Two independent outputs per module. 100 to 1,000 mA per channel. Display; Type: LCD graphics display, 240 (W) x 128 (H) pixels. Back Lighting: Green LED. Controls: Brightness and Contrast (contrast optimizes viewing angle). Channel Active: Green LASER ACTIVE LED indicates that at least one Laser Diode output is on and the LCD graphics shows details of active channels. GPIB/IEEE 488.2 and RS-232C Interface
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Related Optical Terms and Definitions. For a complete list go to our
Terms and Definitions Page.
Broadband Source (BBS)
A Broadband Source is a spectrally large source that emits a signal which contains a continuous range of frequencies with a broad optical bandwidth (usually 100 nm or more). Sometimes called a white light source, there are two different meanings of this term. Visible white light and a source which does not necessarily emit in the visible spectral region.
Coherence
Coherence is the pattern and or relationships of waves due to phase properties.
Linearity
Linearity is the relative difference between the displayed power ratio, Dx/D0, and the actual (true) power ratio Px/P0 caused by changing the displayed power level from the reference level, D0, to an arbitrary displayed level, Dx.
Power Flatness Over Modulation
When changing the wavelength and modulation frequency, and measuring the differences between actual and displayed power levels (in dB), the power flatness is ± half the span between the maximum and the minimum value of all differences.
Singlemode fiber
Singlemode Fiber has a small core, only about 9 microns, and is used for telephony and CATV with laser sources at 1300 and 1550 nm. It can go very long distances at very high speeds. Both multimode and singlemode fiber have an outside diameter of 125 microns - about 5 thousandths of an inch - just slightly larger than a human hair.
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