Newport Spectra-Physics Newsletter - #37 - October 2012 - (Page 5)

www.newport.com October 2012 5 1474-A & 1484-A 22 GHz and 38 GHz Photoreceivers Key Features High Speed Instrument-Quality Linear Photoreceivers Low-Noise Amplifier 850 nm MM version for VCSEL High Dynamic Range Photocurrent Monitor Protected Bias Circuitry Plugs directly into Oscilloscope High-speed measurements of optical waveforms are made possible with the ILX Lightwave Models 14x4 photoreceiver modules. These modules convert optical signals to electrical signals and can be used to provide every high-speed and highfrequency instrument in your lab an optical input. In Model 1474-A, an InGaAs PIN photodiode is followed by a low-noise, linear, high-bandwidth amplifier to provide a 38 GHz bandwidth; in Models 1484-A and 1484-A-50 a larger GaAs photodiode is followed by the same amplifier to provide a 22 GHz bandwidth. The amplifier combines moderate gain and low noise to reduce the input-referred noise floor of your system. It also maintains linearity at high output levels, providing a high dynamic range. The high output level also facilitates operation with logic circuits. The receiver has a negative conversion gain due to the inverting amplifier used – if you are using an oscilloscope and would like to see a positive output, an inverting function can be used. In models with single-mode fiber the optical signal is delivered to the PIN photodiode through a 0.1 m, 9 µm core optical fiber, while in the Model 1484-A-50 the signal is delivered through a 50 µm core graded-index multimode fiber of the same length. An internal lens in the 1484-A-50 focuses the light onto the small high-speed PIN photodiode. The small size of the modules allows you to connect them directly to your test instrument or another high-speed component. This eliminates the need to follow the photoreceiver with coaxial cable, which can distort timedomain waveforms and attenuate CW microwave signals. O P T I C A L M E A S U R E M E N T WEB To learn more, visit www.newport.com/14x4-A 818-ST2-IR Series Germanium Slim Photodiode Sensors All detectors are supplied with a NIST traceable calibration report that details individual detector responsivity measured with and without attenuator. The model indicated by the /DB suffix come with an additional BNC/DB15 calibration module that provides direct compatibility with Newport power meters, including 1830-R-GPIB, 1916-R, 1917-R, 1918-R, 1928-C, and 1936-R / 2936-R. The /CM suffixed models come with an additional BNC/8-pin mini-DIN calibration module that provides compatibility with legacy Newport power meters. In both cases, the /CM and /DB adapters contain also the detector calibration data, model number, serial number and calibration date for seamless operation with the power meter. Incorporating a large 10 x 10 mm Ge photodiode, the all new 818-ST2-IR series slim detectors are ideal for measurements in tight locations with busy setups in the wavelength range of 780–1800 nm. The Series provides a built-in calibrated OD3 attenuator at the flick of a switch. They are packaged in ergonomically designed anodized aluminum housing to avoid burning. The calibration module is detachable from the BNC connector, allowing interfacing with Newport meters, an oscilloscope, or a current meter. WEB To learn more, visit www.newport.com/818-ST2-IR http://www.newport.com http://www.newport.com/22-GHz-and-38-GHz-Photoreceivers/1015651/1033/info.aspx http://www.newport.com/22-GHz-and-38-GHz-Photoreceivers/1015651/1033/info.aspx http://search.newport.com/?q=*&x2=sku&q2=818-ST2-IR http://search.newport.com/?q=*&x2=sku&q2=818-ST2-IR

Table of Contents for the Digital Edition of Newport Spectra-Physics Newsletter - #37 - October 2012

Cover & Contents
LIGHTWAVE
LDX-3500B Precision Laser Diode Driver
FPM-8220 Series Fiber Optic Power Meter
LDT-5500B Laser Diode Temperature Controller
NEW FOCUS
TLB-6700 Velocity™ Advanced Tunable Diode Laser System
1474-A & 1484-A 22 GHz and 38 GHz Photoreceivers
NEWPORT
818-ST2-IR Series Germanium Slim Photodiode Sensors
FMSPPHA Linear Metrology Stages with Linear Encoder
HXP50 Compact Hexapod
A Simple, Automated, Cost-Effective Solution to Beam Stabilization and Optical Alignment Recovery
31-30137 Laser Safety Eyewear Including a New Rio™ Frame
Achromatic Quartz-MgF2 Zero-Order Wave Plates
AJS Series 170 TPI Adjustment Screws
SN200-F2K 2.0 in. Suprema Clear Edge Mirror Mount
SPECTRA-PHYSICS
Spitfire® Ace™ Power Amplifier
LiteratureRequest
Events

Newport Spectra-Physics Newsletter - #37 - October 2012