Home Optical T&M Polarisation Control & Emulation General Photonics POS-203 – Polarisation Stabiliser, 3 Port

General Photonics POS-203 – Polarisation Stabiliser, 3 Port

Product Code:
POS-203
Manufacturer: General Photonics Corporation
  • Reset free operation
  • External feedback ports
  • Tunable operation parameters
  • Low insertion loss

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The General Photonics POS-202, POS-203 and POS-204 polarisation stabilisers maintain stable output states of polarisation (SOP) against rapid input SOP fluctuations, compensating for an input polarisation discontinuity in as fast as 5 ms, or tracking without resets against a continuous input SOP rotation of up to 32π/s. The POS-20X architecture includes a polarisation controller, in-line polarisation monitor, and proprietary algorithms.

The POS-203 has optical ports for signal input and output and a third port for an optical feedback signal. It automatically optimises the output SOP to either maximise or minimise and optical or electrical feedback signal. It also allows the operator to control the step size, feedback delay, activation threshold, and search algorithm (maximum or minimum) from the front panel as well as remotely via one of the digital interfaces.

APPLICATIONS

  • Eliminate polarisation fluctuations in fibre systems
  • Suppress noise figure in optical amplifiers
  • Reduce PDL effects
  • Demultiplex polarisation division multiplexed channels
  • Stabilise output SOP of high power laser amplifiers

Operating Wavelength Range1

calibrated wavelength ± 50nm standard

Calibrated Wavelengths

1550, 1310, 1060nm

SOP Recovery Time

< 5 ms (1.5 ms typical)

SOP Rotation Tracking Speed2

32 π/s, endless tracking & reset free

SOP Accuracy3

< 0.1 dB (PM output fibre)

Repeatability3

< 0.1 dB

Insertion Loss

0.8 dB typical, 1.2 dB max. (POS-202)

0.1 dB intrinsic, < 0.5 dB with connectors (POS-203 polarisation controller optical path)

Return Loss

> 50 dB

Isolation in Orthogonal Polarisation

20 dB

Minimum Optical Input

-30 dBm (POS-202)

-35 dBm (POS-203 optical feedback)

Optical Power Handling4

20 dBm (POS-202)

30 dBm (POS-203 polarisation controller input)

6 dBm (POS-203 optical feedback input)

Operating Temperature

0 to 50 °C

Storage Temperature

-20 to 70 °C

Front Panel Display

OLED graphic display

Electrical Feedback

BNC connector to accept 0 – 4.5 V analog voltage

Power Supply

100 – 240 VAC, 50 – 60 Hz

Communication Interfaces

USB, Ethernet, RS-232, and GPIB

Dimensions

2U 19 inch half rack width 14" (L) x 8.5" (W) x 3.5" (H)

Notes:

Specifications listed in table apply for standard 1310 or 1550nm operation at 23±5 °C.

1 For standard versions with PM outputs. Other wavelength ranges are available. Specifications may be different for instruments with different wavelength or power ranges or different output fibres.
2 For input power >-25 dBm for POS-202, or optical feedback signal >-35 dBm for POS-203 and POS-204.
3 The output power fluctuation caused by SOP fluctuation after passing through a polariser.
4 Standard version. Higher power ranges may be possible by special request.

 

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