PSY201 Frame

PSY-201 – Polarization Synthesizer/Analyzer

The PSY-201 generates and maintains any state of polarization (SOP), regardless of the input SOP. It combines General Photonics’ patented controller, polarimeter, and control algorithms into an instrument that functions as both an SOP generator and a polarization analyzer.

The generated SOP and the corresponding Poincaré representation are displayed on a PC via USB interface. Output SOP can be defined by Stokes parameters, by manually tuning the SOP to any point on the Poincaré sphere or by optimizing a polarization-dependent metric. Once a desired output SOP is found, the instrument maintains the SOP against input SOP fluctuations.

The user can generate 6 distinct SOPs (0°, 90°, ± 45°, RHC and LHC) for Mueller matrix calculations, or select any of the 6 states at the touch of a button.

The PSY-201 contains programmed SOP traces of common polarization variations. It can also function as a polarization scrambler, generating SOP scans with user-defined parameters and, with the internal polarization controller disabled, it can function as an in-line polarimeter, displaying the instantaneous SOP and DOP of the input light beam.

The PSY-201 as well as other General Photonics instruments are shipped with manual and accessories in a padded aluminum case (see below).

Specifications

Operating Wavelength Range: 1480 to 1620 nm or 1280 to 1340 nm

Sampling Rate (max.): 4.0M SOP samples/s

Analog Bandwidth1: 1MHz

SOP Settling Time: 1ms at stable input SOP

SOP Stability (Input Power > -25 dBm, DOP > 95%)

0.1° with stable input SOP

0.5° with input SOP variation < 2 p/s

2° with input SOP variation < 10 p/s SOP Measurement/Generation Uncertainty: ±0.25° after user calibration, with input > -25 dBm

DOP Uncertainty

±2% using built-in calibration, with input > -25 dBm

±0.5% after user calibration, with input > -25 dBm

Input Stokes Parameter Resolution: 0.001

Optical Power Uncertainty: ±0.25 dB

Insertion Loss: 1.6 dB max (at center wavelength)

Return Loss:

55 dB (APC connector),

45 dB (PC connector)

PDL: < 0.25 dB

PMD: < 0.1 ps

Operating Power Range: -35 dBm to +10 dBm

Optical Power Damage Threshold: 300 mW

Operating Temperature: 0 °C to 40 °C

Storage Temperature: -20 °C to 60 °C

Communication Interfaces: USB, Ethernet, RS-232, and GPIB

Analog Output: 0 to 5V max range, user configurable

Monitor voltage for DOP, S1, S2, S3, power or dREF

Power Supply: 100 – 240 VAC, 50 – 60 Hz

Dimensions: 2U, 19” half rack width 3.5”(H) x 8.5” (W) x 14” (L)

Notes: Loss specifications are referenced without connectors. Unless otherwise noted, specifications listed here apply for standard 1480-1620nm or 1280-1340nm versions at 23 ± 5°C, at power levels > -25 dBm.

For input power > -10 dBm. At lower power levels, bandwidth may change due to automatic gain control.