MPC Polarization Controller

980-1620 nm; SOP Change Rate >360 krad/s; IL <0.6 dB; PDL <0.1 dB; PMD <0.2 ps; AL <0.1 dB; RL >50 dB General Photonics’ MPC-202 advanced multifunction polarization controller is specially designed to meet the requirements of coherent receiver performance tests. MPC-202 combines General Photonics’ award winning PolaRite™ II/III polarization controller with proprietary polarization control algorithms to achieve a wide range of polarization control functionalities, including high-speed quasi-uniform rate polarization scrambling, random-rate polarization scrambling with Rayleigh rate distribution, discrete-state polarization scrambling with high slew rate, sine, square, and triangle-wave SOP (state of polarization) modulation, and manual polarization control functions. In particular, the “Tornado” quasi-uniform rate polarization scrambling function can achieve a high SOP scrambling rate of up to 60,000 revolutions/s (more than 360 krad/s) with a narrow rate distribution clustered around the highest rate. In short, the MPC-202 is an ideal tool for production or laboratory testing of polarization related functions and parameters, including passive/active component characterization, performance tests of fiber optic interferometers, sensor systems, RF photonics systems, etc. The quasi-uniform rate high-speed scrambling function is particularly useful for SOP tracking speed testing of coherent receivers, and the square wave SOP modulation function is ideal for SOP recovery time tests. Key Features: Quasi-uniform Rate SOP (State of Polarization) Scrambling SOP Change Rate: >360 krad/s Scrambling With Rayleigh Rate Distribution Discrete SOP Scrambling SOP Modulation Operating Wavelength Range: 1260 to 1620 nm, 980 to 1310 nm Tornado Polarization Scrambling: 0.00 to 60,000 Revolutions/s Mean Rayleigh Rate Distribution Polarization Scrambling: 0.00 to 2,000 rad/s Triangle Polarization Scrambling: 0.00 to 2,000 x 2π rad/s Discrete Random States Polarization Scrambling: 0.00 to 20,000 points/s Manual Polarization Control: 4 Channels, 0 to 4π Each Channel Low Insertion Loss (IL): <0.6 dB With Connectors Low Polarization Dependent Loss (PDL): <0.1 dB With Connectors Low Polarization Mode Dispersion (PMD): <0.2 ps With Connectors Low Activation Loss (AL): <0.1 dB With Connectors Return Loss: >50 dB With Connectors Optical Power Handling: 1,000 mW Bright OLED Display Applications: Laboratory Testing of Polarization-related Parameters; Performance Tests of Fiber Optic Interferometers and Systems; SOP Tracking Speed Testing of Coherent Receivers

MEMS-based, Pigtail Style, Reflection Mode; Single/Dual Types; Fiber Type SMF28; 1240 to 1640 nm; Attenuation up to 30 dB Sercalo Technology’s VXP series of miniature MEMS variable optical attenuators (VOAs) comes in a very small package and is ideally suited for integration in subsystems, where cost, size and performance are the most critical factors. The non-latching attenuators work in reflection mode and allow for continuous adjustment of the attenuation with a 0 to 5 V control voltage. The VXP variable optical attenuators are composed of an optical subsystem and an electrical driver interface. The highly reliable attenuation mechanism is based on a micromechanical shutter - a silicon MEMS chip, on which a mirror can be moved in and out of the optical path by electrostatic actuation – and features below 20 ms response time and below 1.0 dB insertion loss. The VXP series of miniature VOAs is available in single (VXP1) and dual (VXP2) variants. The plastic package is one of the smallest in the industry and optimized for low cost production while maintaining high reliability comparable to a solid-state device. The component is designed to meet Telcordia 1221 quality standards.The standard VXP attenuator achieves minimum insertion loss at 0 V input voltage. When power is removed, the insertion loss is roughly 0.5 dB higher than the minimum insertion loss (at 0 V when power is on). Key Features: Small Size (23 x 10 x 6 mm) Low PDL Very Fast 0 to 5 V Control Single or Dual Channel Applications: Power Management in DWDM Transceivers; Amplifier Gain Control; Optical Subsystems; Array Integration

980-1620 nm; Multiple Polarization Control Modes; IL <0.6 dB; PDL <0.1 dB; PMD <0.2 ps; AL <0.1 dB; RL >50 dB Controlling the state of polarization (SOP) of an optical signal has never been easier – General Photonics’ MPC-201 multifunction polarization controller has four operational modes for complete polarization control: variable rate polarization scrambling, manual polarization adjustment, polarization modulation, and externally triggered random SOP generation. Four different polarization scrambling methods enable the SOP to a) trace out a spiral pattern about a static or rotating axis with a nearly uniform SOP variation rate for system stress tests (Tornado scrambling); b) generate a continuous trace with a Rayleigh distribution of SOP variation rate, for emulation of the SOP variation in a fiber link (Rayleigh scrambling); c) generate a continuous trace with uniform sphere coverage for PDL measurement (Triangle scrambling); or d) evenly cover the Poincaré sphere with discrete, random points at a uniform rate (Discrete scrambling). In the SOP modulation mode, each polarization control axis can be selectively controlled with a sine, square, or triangle wave of user defined frequency and amplitude. Each polarization control axis can also be controlled manually, by setting the input voltage either from the front panel controls or through a remote control interface. In externally triggered scrambling mode, discrete, random SOPs are generated in response to a trigger input, a feature desirable for recirculating loop applications or other applications requiring synchronization with other devices. Finally, the MPC-201 can emulate the Agilent 11896A polarization scrambler function, allowing it to act as a plug-in replacement for this popular but discontinued device, while offering many more advanced features. The MPC-201 polarization controller puts the user in control. Key Features: Multiple Polarization Control Modes Tornado Scrambling (Quasi-uniform Rate Distribution): 0.00 to 2,000 Revolutions/s Real Fiber SOP (State of Polarization) Variation Emulation (Rayleigh Rate Distribution): 0.00 to 2,000 rad/s Discrete Random States SOP Scrambling: 0.00 to 20,000 Points/s Triangle Polarization Scrambling: 0.00 to 2,000 x 2π rad/s Agilent 11896A Scrambling Emulation: Speed Settings 1 to 8, Matched to 11896A Settings SOP Modulation Operating Wavelength Range: 1260 to 1620 nm, 980 to 1310 nm Manual Polarization Control: 4 Channels, 0 to 4π Each Channel Low Insertion Loss (IL): <0.5 dB With Connectors Low Polarization Dependent Loss (PDL): <0.05 dB With Connectors Low Polarization Mode Dispersion (PMD): <0.1 ps With Connectors Low Activation Loss (AL): <0.05 dB With Connectors Return Loss: >50 dB With Connectors Optical Power Handling: 1,000 mW Bright OLED Display Applications: Recirculating Loop Studies; Automated Testing; Real Fiber Emulation; SOP Variation Emulation; PMD Emulation; Polarization Scrambling; System Polarization Studies; PDL/DOP Measurement

Max. DC Current 200-20,000 A; Max. AC Current 2-71 A; Output 0.025-5.0 V/A; Operating Frequency 0.5 Hz - 500 MHz; Connector Type SMA, BNC; Rise Time 0.875-17.5 ns Magnelab’s HFCT series of high-frequency current transformers has been designed to provide very accurate, non-contact, non-destructive measurements of either single or repetitive bipolar or unipolar pulses. HFCT current transformers contain a solid toroid core and will measure input ranges of 200 to 20,000 A DC or 2 to 71 A AC. The output signal of the transformers with voltage output ranges from 0.025 to 5.0 V/A is an accurate voltage waveform representation of the measured current, which can be analyzed on an oscilloscope, RF power meter, spectrum analyzer or custom interface circuitry. HFCT current transformers also work for the continuous wave. The AC current sensors in this series measure current from just microamperes up to 20,000 A. Coming in five different case sizes with opening sizes from ¼” (6.35 mm, CT-B models) to 2” (50.8 mm, CT-F models) and with a choice between SMA or BNC connector types, these broad frequency response current transformers can operate from 0.5 Hz to 500 MHz. HFCT high-frequency current transformers feature a very high frequency cutoff, which ensures that fast transients can be faithfully rendered, as well as a broad operating temperature range of -20 to +120 °C. Nominal accuracy is 0.5%, spread over a wide bandwidth. Compared to competing current sensors, Magnelab’s HFCT series is as much as five times more sensitive to signal measurement at low intensity. Key Features: Higher Frequency Cutoff, Assuring Faithful Rendering of Fast Transients Up to Five Times More Sensitive for Low-intensity Signal Measurement Operating Temperature: -20 to +120 °C Higher Nominal Accuracy Over a Wider Bandwidth: ±0.5% Output: 0.025 to 5.0 V/A Maximum Peak DC Current: 200 to 20,000 A Maximum RMS AC Current: 2 to 71 A Droop: 0.001 to 3 %/µs Rise Time: 0.875 to 17.5 ns Maximum I*t in 50 Ω: 0.0001 to 0.756 As Operating Frequency (-3 dB): 0.5 Hz to 500 MHz Opening Diameter: ¼” (6.4 mm) to 2” (50.8 mm) Outer Diameter: 1” (25.4 mm) to 3.60” (91.5 mm) Connector Type: BNC, SMA Applications: Electromagnetic Interference Research; Power System Harmonics and Transients; Laser and Plasma Research; Capacitor and Electrostatic Discharge; Corona Wire Discharge; Semiconductor Gate Switching; Partial Discharge Measurement; Lightning Research and Simulation Testing; Critical Monitoring of Current Fluctuations