At Photonics on Crystals (POC), we provide a range of high-performance optical isolators designed for precision and efficiency across various applications. Optical isolators ensure unidirectional light transmission, preventing back reflections that can interfere with sensitive optical systems. We offer customizable solutions tailored to meet specific wavelength and polarization requirements.
Fixed Narrowband Optical Isolators
These isolators are optimized for a 45-degree rotation at a specific design wavelength. The polarizers are fixed, ensuring maximum isolation at the intended wavelength. However, as the operating wavelength deviates, the isolation performance gradually declines.
Key Features:
- Fixed rotator element with non-adjustable polarizers
- Polarization dependent
- Compact and cost-effective
- No tuning required
Performance Graph:
Adjustable Narrowband Optical Isolators
Designed for applications requiring wavelength flexibility, these isolators maintain a 45-degree Faraday rotation at a specific wavelength but allow polarizer adjustments to optimize isolation at different wavelengths. The adjustable polarizer can compensate for wavelength shifts, ensuring maximum efficiency.
Key Features:
- Fixed rotator element with adjustable polarizers
- Polarization dependent
- Versatile for multiple wavelength configurations
Performance Graph:
Adjustable Broadband Optical Isolators
For applications requiring a broader wavelength range, these isolators feature a tunable Faraday rotator. A built-in tuning mechanism enables precise rotation adjustments, maintaining optimal isolation across a wide spectral range.
Key Features:
- Adjustable rotator element with fixed polarizers
- Polarization dependent
- Simple tuning procedure for enhanced flexibility
- Wider tuning range than narrowband isolators
Performance Graph:
Fixed Broadband Optical Isolators
Utilizing a 45-degree Faraday rotator coupled with a 45-degree crystal quartz rotator, these isolators achieve a combined 90-degree output rotation. This configuration provides a flat-top isolation profile, eliminating the need for wavelength tuning.
Key Features:
- Fixed rotator element with non-adjustable polarizers
- Polarization dependent
- Largest isolation bandwidth for wide-range applications
- No tuning required
Performance Graph:
Tandem Optical Isolators
Tandem isolators incorporate two Faraday rotators in sequence, sharing a central polarizer. This configuration significantly enhances isolation levels while maintaining zero net rotation at the output.
Key Features:
- Isolation up to 60 dB
- Polarization dependent
- Highest isolation capability
- Available in both fixed and adjustable configurations
Performance Graph:
Customized Optical Isolators for OEM Applications
At Photonics on Crystals (POC), we specialize in custom optical isolators tailored to specific industry needs. Our team works closely with OEM clients to develop solutions that integrate seamlessly into their optical systems. We offer customization for:
- Wavelength range adjustments
- Aperture size modifications
- High-power handling capabilities
- Thermally stable isolator designs
If you require a non-standard optical isolator, contact us to discuss your specifications.
Free-Space Optical Isolators
Our free-space isolators provide unparalleled flexibility for laboratory and industrial applications. Designed for both narrowband and broadband usage, they offer excellent performance with customizable aperture sizes and power handling capabilities.
Specifications:
Parameter | Range |
Wavelength Range | 365 nm – 4550 nm |
Aperture Sizes | Up to Ø15 mm |
Max Power Handling | Up to 2 GW/cm² |
Isolation Performance | Up to 60 dB |
Operating Temperature | 10°C – 70°C |
Fiber Optical Isolators
For applications requiring fiber integration, we offer a range of fiber-based optical isolators optimized for single-mode (SM), polarization-maintaining (PM), and large-mode-area (LMA) fibers. These isolators ensure high transmission efficiency while minimizing reflection losses.
Specifications:
Parameter | Range |
Wavelength Range | 633 nm – 2050 nm |
Polarization Dependence | Dependent or Independent |
Max Power (Fiber to Free-Space) | 30 W |
Max Power (Fiber to Fiber) | 20 W |
Operating Temperature | 10°C – 70°C |
Contact Us
For inquiries, custom orders, or technical support, reach out to us:
📍 Photonics on Crystals (POC)
🏢 Address: 71 Bukit Batok Crescent, #09-10, Prestige Centre, Singapore 658071
📧 Email: sales@poc.com.sg
📞 Telephone: +65-90749669
Explore our range of high-performance optical isolators and find the perfect solution for your application!
