Name: PolaMight MPC-202 Advanced Multifunction Polarization Controller
Brand: Luna
SKU: MPC-202

Overview

The MPC-202 is a multifunction polarization controller designed for coherent receiver performance tests. It combines fiber squeezer polarization controllers (PolaRite III) with proprietary polarization control algorithms to provide a wide range of polarization control functions.

Available functions include quasi-uniform rate (Tornado) polarization scrambling, random-rate scrambling with a Rayleigh rate distribution, discrete-state scrambling, sine, square and triangle-wave SOP modulation, triggered scrambling, emulation of Agilent 11896A scrambling speed settings, and manual polarization control.

The Tornado scrambling function reaches SOP scrambling rates of up to 60,000 revolutions/s (more than 360 krad/s) with a narrow rate distribution clustered around the highest rate, which suits SOP tracking speed testing of coherent receivers. The square-wave SOP modulation function, with a slew rate of 360 krad/s, is intended for SOP recovery time tests.

Beyond coherent receiver testing, the instrument is used for recirculating loop experiments, real-fiber SOP variation emulation, PDL and DOP measurement, and system polarization dependence experiments. It is controlled via USB, Ethernet, RS-232 or GPIB and has an OLED front-panel display.

Key Features

Quasi-uniform rate (Tornado) SOP scrambling with SOP change rate up to 360 krad/s
Scrambling with Rayleigh rate distribution
Discrete SOP scrambling
SOP modulation with sine, triangle and square waveforms
Manual polarization control
Multiple polarization control and scrambling functions
Low IL, PDL, PMD, and activation loss (AL)
Bright OLED display

Specifications

Optical

Operating wavelength range	1260 to 1620nm (standard) or 980 to 1310nm
Insertion loss	< 0.6 dB with connectors (< 0.15 dB intrinsic)
PDL	< 0.1 dB with connectors (< 0.02 dB intrinsic) Web page lists 0.1 dB with connectors
Activation loss	< 0.1 dB with connectors
Return loss	> 50 dB with connectors (> 65 dB intrinsic)
PMD	< 0.2 ps with connectors
Optical power handling	1000 mW

Polarization Scrambling

Tornado (quasi-uniform rate distribution)	0.00 to 60,000 revolutions/s More than 360 krad/s
Max SOP change rate (Tornado scrambling) MPC-202	360 krad/s
Rayleigh rate distribution	0.00 to 2000 rad/s (mean)
Triangle	0.00 to 2000 x 2π rad/s
Discrete random states	0.00 to 20,000 points/s
Agilent 11896A scrambling emulation	Speed settings 1-8, matched to Agilent 11896A settings
External trigger mode	Random SOP per TTL trigger pulse, up to 20,000 points/s

Manual Polarization Control

Number of channels	4 Fiber squeezers
Range	0 – 4π each squeezer

Polarization Modulation (Each Channel)

Waveforms	Sine, Triangle, Square
Frequency	0.00 to 1000 Hz
Amplitude	0 to 3π peak-to-peak
Slew rate for square wave SOP modulation	360 krad/s 10% to 90%, channel 3

Interfaces

Communication interfaces	USB, Ethernet, RS-232, and GPIB
Electrical trigger connectors	BNC
Output trigger	TTL pulse per SOP generated in discrete scrambling mode
Input trigger	One random SOP generated per TTL pulse received in trigger mode
Front panel display	OLED graphic display
Optical connector type	FC/PC, FC/APC, others specify Ordering option