Mechanical Optical Switches
1X4 Step-index multimode fiber Optical switch
1X4 Step-index multimode fiber Optical switch 405-640nm 50/125um (NA0.22) 0.9mm 0.5m fiber，FC/UPC, RS-232 Serial Port，135x60x35 module | FSW14M05F Features： Wide spectral compatibility Covers the complete visible light band from 405 nm (violet) to 640 nm (red)
Communication Products
Product Overview
1X4 Step-index multimode fiber Optical switch 405-640nm 50/125um (NA0.22)
0.9mm 0.5mfiber，FC/UPC, RS-232 Serial Port，135x60x35 module |FSW14M05F
Features：
- Wide spectral compatibility
Covers the complete visible light band from 405 nm (violet) to 640 nm (red), compatible with common semiconductor lasers, LEDs, and xenon light sources, meeting diverse requirements such as fluorescence detection and confocal imaging.
- Low insertion loss and high channel isolation
Precision optical alignment and matched design with step-index multimode fiber ensure low insertion loss and low crosstalk between channels, guaranteeing signal integrity and measurement accuracy.
- Robust and durable with industrial-grade reliability
Equipped with 0.9 mm fiber and FC/UPC connectors, featuring high mechanical strength and excellent insertion-extraction repeatability. The fully metal shielded housing effectively resists electromagnetic interference, adapting to both laboratory and industrial on-site environments.
- Compact modular design
Small dimensions of 135×60×35 mm for easy system integration and rack mounting. Controlled via the standard RS-232 serial port with a simplified command set, supporting direct driving by PCs, PLCs, and embedded systems.
- Flexible channel switching
1-input 4-output architecture (or 4-input 1-output selection), supporting unidirectional optical path selection. Fast switching response and precise channel positioning enable automated multi-channel time-division acquisition when combined with software.
Application：
- Biomedical Applications：Flow cytometry, confocal microscopy, multi-channel fluorescence detection for endoscopes.
- Spectral Analysis：Automatic switching of multi-channel sample cells, LIBS/OES spectral acquisition systems.
- Industrial Inspection：Multi-station light source switching for machine vision, laser marking beam splitting systems.
- Scientific Research Experiments：Automatic optical path configuration, time-division multiplexing of multiple detectors, quantum optics experiment platforms.
Specifications：
| Parameters | Value |
| Model | FSW14M05F |
| Insertion Loss | 1×4(4×1) |
| ≤1.0 dB | |
| Operating Wavelength | 405-640nm |
| Test Wavelength | 450/650nm |
| Return Loss | MM ≥ 30 |
| Channel Crosstalk | MM ≥ 50 |
| Polarization Dependent Los | ≤0.05 dB |
| Wavelength Dependent Loss | ≤0.25 dB |
| Temperature Dependent Loss | ≤0.25 dB |
| Repeatability | ≤0.02 dB |
| Switching Life | ≥107 |
| Switching Time | ≤20ms （Adjacent Channels） |
| Optical Power | ≤500 mw |
| Fiber Type | Step-index multimode fiber 50/125um (NA0.22) |
| Connector | FC/UPC(or others） |
| Control Method | RS-232 |
| Operating Voltage | 5V |
| Operating Current | 600 mA |
| Operating Temperature | -20 ℃ ~ +70 ℃ |
| Storage Temperature | -40 ℃ ~ +85 ℃ |
Product Dimensions
Optical Route：
Pin Configurations：
| DB9 Male connector | |||
| PIN | Model | Name | Function |
| 2 | Input | RXD | RS-232 RX |
| 3 | Out | TXD | RS-232 TX |
| 5，8 | Power | GND | Power GND |
| 9 | Power | VCC | Power VCC（5V，500mA） |
| 1,4,,6,7 | NC | NC | Null |
Control Diagram：
Control Commands：
● “_”stands for underscore.
● All letters in the communication protocol shall be in uppercase.
● In actual operation, enter the angle bracket “ <“ as the start character and “ >“ as the end character.
| Name | Commands | Description |
| Set Optical Switch Channel | Commands:<OSW_OUT_XX> |
This command is used to set and select the optical switch channel. When XX is 00, the channel is reset. When XX is 01, the switch switches to Channel 1.Response 1 will be returned if the setting is successful.If the input XX exceeds the number of optical switch channels, Response 2 will be returned |
|
Response 1:<OSW_OUT_OK> Response 2:<OSW_OUT_OVERFLOW> |
||
| Query Current Channel of Optical Switch | Commands:<OSW_OUT_Magnet> | This command is used to query the current channel of the optical switch.A valid response command will be returned upon successful query, where XX indicates the current channel. |
| Response:<OSW_OUT_XX> | ||
| Query Optical Switch Information | Commands:<OSW_TYPE_Magnet> |
This command is used to query the information of the optical switch, and the returned response indicates: Module Model: OSW-1XNN |
| Response:<OSW_TYPE_OSW-1XNN_1260~1650_SM,9/125_90_10_R_FA> |
Note: The module serial port baud rate is 9600, data bits: 8, stop bits: 1, no parity.If the sent command is invalid, the optical switch returns the response command <OSW_ERROR> 。
Order Information ：
| Model | Specification Description |
| FSW14M05F | 1X4 Step-index multimode fiber Optical switch 405-640nm 50/125um (NA0.22) 0.9mm 0.5m fiber，FC/UPC, RS-232 Serial Port，135x60x35 module |
Note: For other customized specifications, please contact us at:sale@Stellar Fusion.com
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