Polarizer Splitter Combiner
Kernstech's 532nm/633nm Circulator is a high-performance optical device used to control the direction of light within fiber optic systems. With a center wavelength of 532nm and 633nm, this circulator is ideal for use in a range of applications such as fiber amplifiers, fiber sensors, and medical devices. The product is designed to minimize insertion loss, provide high return loss, and ensure robust isolation, ensuring consistent signal integrity. Its polarization-insensitive nature makes it suitable for diverse environments, ensuring stable operation in both standard and advanced systems.
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Product Description
| Parameter | Spec | Unit | |
| Port Type | 3 Port | / | |
| Center Wavelength | 532,633 | nm | |
| Operating Wavelength Range | ±5 | nm | |
| Typ.Peak Isolation @23℃ | 22 | dB | |
| Min.Isolation @23℃ | 20 | dB | |
| Typical Insert loss@23℃ | 1.5 | dB | |
| Max.Insertion Loss@23℃ | 20 | dB | |
| Min.Extinction Ratio @23℃(PM Fiber Type) | 20 | dB | |
| Max.Polarization Dependent Loss @23℃(Single Mode Fiber Type) | 0.15 | dB | |
| Min.Return Loss(Input &Output) | 40 | dB | |
| Minimum Crosstalk | 40 | dB | |
| Max.Average Power(includingport 1 and port2) | 0,5,1,2 | W | |
| Max.ns pulse peak power | 10orSpecified | kW | |
| Max.Tensile Load | 5 | N | |
| Package Dimensions | 38×28×26 | mm | |
| Operating temperature | +10~+50 | ℃ | |
| Storage temperature | 0~+60 | ℃ | |
Product Description
The Polarizer Splitter Combiner (PBS/PBC) is a high-performance optical component designed to separate or combine orthogonally polarized light signals with exceptional efficiency and polarization purity. Constructed using polarization-maintaining (PM) fiber or bulk optical elements (e.g., birefringent crystals), it routes light based on its polarization state, enabling precise management of linear polarization (TE/TM modes) in optical systems. The device supports a wide wavelength range (1030–1625 nm) and features a compact, epoxy-free design for enhanced long-term reliability. Its low insertion loss and high polarization extinction ratio (PER) make it critical for applications requiring strict polarization control.
Features
High Polarization Purity: Achieves PER ≥30 dB (PM fiber-based) or ≥40 dB (bulk optics) for superior separation of orthogonal polarization states.
Low Loss Operation: Insertion loss ≤0.5 dB (splitter) / ≤0.6 dB (combiner) and return loss ≥55 dB, ensuring minimal signal degradation.
Wide Wavelength Support: Optimized for 1064 nm, 1310 nm, 1480 nm, 1550 nm, and custom wavelengths for laser, telecom, and sensing applications.
Flexible Configuration: Available as 1x2 splitter (divides input into two orthogonal polarizations), 2x1 combiner (merges two polarizations), or 2x2 bidirectional device.
Robust Construction: Hermetically sealed with anti-vibration coatings, operating reliably from -40°C to 85°C with minimal thermal drift (≤±0.2 dB).
Applications
Coherent Communication Systems: Enables polarization division multiplexing (PDM) in 100G+ transceivers, doubling spectral efficiency by utilizing both TE and TM modes.
Fiber Laser Systems: Combines pump light (unpolarized) with polarized signal light in PM fiber amplifiers, ensuring stable polarization output for industrial lasers.
Optical Sensing: Separates polarization states in interferometric sensors (e.g., Mach-Zehnder, Sagnac) to eliminate noise and improve measurement accuracy.
Research & Development: Used in quantum optics experiments to manipulate polarization-entangled photons and in spectroscopy for polarization-resolved measurements.
Medical Imaging: Enhances contrast in polarization-sensitive optical coherence tomography (OCT) by separating reflected signals based on polarization state.
Faq
Q: What is the difference between a splitter and a combiner?
A: A splitter takes a single input and outputs two orthogonal polarizations, while a combiner merges two orthogonal polarizations into a single output.
Q: Can it be used with non-PM fibers?
A: Yes, but polarization maintenance is optimized for PM fibers; non-PM use may reduce PER by 5–10 dB.
Q: How is the polarization axis aligned during installation?
A: PM fiber variants include polarization markers (keyed connectors) for easy alignment with the slow axis of the fiber.
Q: What is the maximum optical power it can handle?
A: Standard models support up to 1 W CW; high-power versions (with thermal coatings) handle up to 5 W for laser applications.
Q: Does it introduce phase delay between polarization states?
A: No, the passive design ensures equal optical path lengths for TE and TM modes, minimizing phase distortion.
