Product Overview
The OSW‑1550PM‑1×3‑0‑FA is a high‑performance polarization‑maintaining optical switch custom‑developed by Coreray (www.coreray.com) for applications that demand strict polarization control. This 3‑input, 1‑output switch operates in the C‑band (1540‑1565 nm) with a center wavelength of 1550 nm, utilizing PM1550 fiber and FC/APC connectors to ensure minimal reflection and excellent polarization extinction ratio. Housed in a benchtop metal enclosure, it offers both manual push‑button and RS232 remote control, making it ideal for laboratory test systems, fiber sensing, and industrial networks where signal integrity and flexibility are paramount.
Key Features
· High Polarization Extinction Ratio (PER) – Minimum 20 dB (typical 25 dB) ensures stable polarization state during switching, critical for coherent communication and sensing.
· Low Insertion Loss – ≤0.8 dB typical, ≤1.2 dB over full temperature range, preserving signal power.
· Fast Switching Response – ≤10 ms switching time enables real‑time test automation and protection switching.
· Dual Control Modes – Front‑panel channel selection buttons plus RS232 serial interface for local and remote operation.
· Industrial Reliability – Operating temperature -10 to +60°C, storage -40 to +85°C, and lifetime ≥1 million cycles.
· Compact Benchtop Enclosure – Metal housing (200×150×80 mm) with anti‑EMI design, easily integrates into lab or industrial setups.
Technical Specifications
Parameter | Unit | Value | Remarks |
Optical |
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Wavelength Range | nm | 1540 – 1565 (center 1550) | C‑band, compatible with DWDM systems |
Insertion Loss (Typ.) | dB | ≤0.8 | @25°C |
Insertion Loss (Max.) | dB | ≤1.2 | Over -10 to +60°C |
Polarization Extinction Ratio (Typ.) | dB | ≥25 | Key PER performance |
Polarization Extinction Ratio (Min.) | dB | ≥20 | Over full temp range |
Crosstalk (Isolation) | dB | ≥60 | High channel isolation |
Mechanical |
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Switching Time | ms | ≤10 |
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Lifetime | cycles | ≥1,000,000 | Full load switching |
Fiber Type |
| PM1550, φ0.9 mm loose tube | ITU‑T G.657 compliant, flexible |
Pigtail Length | m | 1.0 (customizable) |
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Connector Type |
| FC/APC | Low reflection, high precision |
Environmental |
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Operating Temperature | °C | -10 to +60 | Industrial grade |
Storage Temperature | °C | -40 to +85 |
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Operating Humidity | %RH | 10 – 90 (non‑condensing) |
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Storage Humidity | %RH | 5 – 95 (non‑condensing) |
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Electrical |
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Power Supply | V DC | 5 – 12 | Wide input range |
Control Interface |
| RS232 + Manual Buttons | Dual‑mode operation |
Power Consumption | W | ≤5 | Energy‑efficient |
Physical |
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Switch Configuration |
| 3×1 (3 inputs, 1 output) |
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Enclosure |
| Benchtop, metal | EMI‑shielded |
Dimensions (W×D×H) | mm | 200 × 150 × 80 | Compact footprint |
Weight | kg | ≤1.5 (without packaging) | Lightweight, portable |
Applications
· Optical Communication Test Systems – Automated path switching for efficient multi‑channel testing.
· Fiber Optic Sensing Networks – Time‑division multiplexing and selective signal routing in DAS, temperature, or strain sensing.
· Fiber Optic Test Instruments – Integration into power meters, optical spectrum analyzers, and OTDRs.
· Optical Amplifier Systems – Protection and redundancy switching in amplifier chains.
· R&D Laboratories – Optical path control and signal selection in experimental setups.
· Industrial Fiber Networks – Signal routing in automation and control systems.
Operation Instructions
1. Power Connection
Use a DC 5‑12 V power adapter (center positive) and connect to the rear‑panel power jack. Ensure correct voltage.
2. Control Mode Selection
o Manual: Press the CH1/CH2/CH3 buttons on the front panel to select the active input channel. The corresponding LED indicates the current channel">
