Luna MPX 2010 Multifunction Polarization Controller and Scrambler

All-fiber, lossless polarization controller and scrambler with polarization scrambling rates of up to 40,000 SOPs per second.

Wavelength range: 1260 to 1620 nm (typical 1550 nm)
Wavelength range: 980 to 1310 nm
Power handling: 0 to 1000 mW
Insertion Loss (IL): 0.5 dB

Datasheet

Overview

The Luna MPX 2010 is a general-purpose, all-fiber, lossless polarization controller and scrambler designed for manufacturing test applications. It is built around the four-axis PolaRite III fiber-squeezer polarization controller, in which four piezoelectric actuator-driven fiber squeezers oriented at 0°-45°-0°-45° induce linear birefringence to change the state of polarization (SOP) of light passing through the fiber.

The all-fiber construction gives low insertion loss, polarization dependent loss and polarization mode dispersion. The standard version covers the O, C and L bands (1260-1620 nm) in a single unit and handles optical power up to 1 W. A second version covers 980-1310 nm.

Operating modes

Four polarization scrambling profiles are provided. Tornado scrambling traces a spiral around a static or rotating axis for a nearly uniform SOP variation rate. Rayleigh scrambling produces a continuous trace with a Rayleigh-distributed SOP variation rate, emulating SOP variation in a fiber link. Triangle scrambling produces a continuous trace with uniform sphere coverage for PDL measurement. Discrete scrambling covers the Poincaré sphere with random points at a uniform rate to randomize SOP and mitigate polarization sensitivity.

In SOP modulation mode, each control axis can be driven with sine, square or triangle waveforms of user-defined frequency and amplitude. Manual control sets the drive on each channel directly through the remote-control interface. An externally triggered scrambling mode generates a discrete random SOP for each trigger input pulse, for synchronization with other instruments such as in recirculating loop experiments.

Control and software

The instrument is controlled over USB 2.0 or Ethernet 100BASE-TX using SCPI commands, a C/C++ API or the PolaX PC GUI. The MPX 2010 replaces the legacy MPC-201 instrument.

Key Features

Multiple operation modes
Low IL, RL, PDL, PMD and activation loss (AL)
Improved GUI software interface and communication speeds
USB 2.0, Ethernet 100BASE-TX
SCPI command, C/C++ API, PC GUI
Trigger in/out
Polarization scrambling speed of up to 40,000 SOPs/second
Four scrambling profiles: Tornado, Rayleigh, Triangle and Discrete
Externally triggered random SOP generation
Handles optical power up to 1 Watt
All-fiber design covering 1260-1620 nm in a single unit
Replaces the legacy MPC-201 instrument

Specifications

Optical Characteristics

Wavelength range MPX 2010-1	1260 to 1620 nm (typical 1550 nm) Min. 1260, typ. 1550, max. 1620
Wavelength range MPX 2010-2	980 to 1310 nm
Power handling	0 to 1000 mW
Insertion Loss (IL)	0.5 dB Max.; intrinsic without connectors < 0.1 dB
Polarization Dependent Loss (PDL)	0.05 dB Max.; a low PDL/activation loss version (0.01 dB intrinsic) is available upon request for PDL measurement applications
Polarization Mode Dispersion (PMD)	0.1 ps Max.
Activation Loss (AL)	0.05 dB Max.; a low PDL/activation loss version (0.01 dB intrinsic) is available upon request
Return Loss (RL)	50 dB Intrinsic without connectors > 65 dB

Polarization Scrambling

Discrete random states	0.00 to 40,000 points/s
Triangle	0.00 to 4000 x 2π rad/s
Rayleigh rate distribution	0.00 to 4000 rad/s Mean of Rayleigh distribution
Tornado (quasi-uniform rate distribution)	0.00 to 4000 revolutions/s

Manual Control

Number of channels	4
Range	0 – 4π each channel

Polarization Modulation (Each Channel)

Waveforms	Sine, Triangle, Square
Frequency	0.00 to 2000 Hz The user manual GUI section lists 0-1000 Hz; datasheet value shown
Amplitude	0 to 3π peak-to-peak

External Trigger Mode

Input trigger	Random SOP per TTL trigger pulse, up to 40,000 points/s

Interfaces and Triggers

Communication interfaces	USB 2.0, Ethernet 100BASE-TX
Remote control	SCPI command, C/C++ API, PC GUI
Trigger connectors	SMA
Output trigger	TTL pulse per SOP generated in discrete scrambling mode or TTL pulse per one period in Polarization modulation mode
Input trigger	One random SOP generated per TTL pulse received in trigger mode

Electrical

Power supply	100-240 VAC, 50 ~ 60 Hz, 65W maximum
Input/output triggers	TTL pulse, SMA connector
Communication interfaces	USB, Ethernet

Physical

Dimensions	13.3 (L) x 9.5 (W) x 2.5 (H) inch
Operating temperature	0 to 50 °C Typical 25 °C
Storage temperature	-20 to 70 °C Typical 25 °C
Weight	2.65 kg
Fiber type	Single Mode Fiber
Fiber input/output connectors	FC/APC

Notes

Specification conditions	Specifications apply for the standard 1260 to 1620nm version over a temperature range of 23 ± 5 °C with connectors

Specifications are taken from the manufacturer's documentation. See the datasheet for complete and current values.

Applications

SOP variation emulation
Polarization scrambling
Polarization sensitivity mitigation
Circulating loop studies
PDL/DOP measurements
System polarization studies
Manufacturing test

Included

Power cable
USB 2.0 A to B cable
USB drive for GUI and documents

Options & Accessories

Option	Description
MPX 2010-1-0-FC/APC	Multifunction Polarization Controller, 1260 nm to 1620 nm, FC/APC connectors — MPX 2010 main frame for C and L band
MPX 2010-1-L-FC/APC	Multifunction Polarization Controller, 1260 nm to 1620 nm, FC/APC connectors, low PDL/Activation loss — MPX 2010 main frame for C and L band
MPX 2010-2-0-FC/APC	Multifunction Polarization Controller, 980 nm to 1310 nm, FC/APC — MPX 2010 main frame for 1um band
MPX 2010-2-L-FC/APC	Multifunction Polarization Controller, 980 nm to 1310 nm, FC/APC connectors, low PDL/Activation loss — MPX 2010 main frame for 1um band
MPX 2010 GUI	MPX 2000 GUI Interface Software (PolaX)