Laser-source protection
Suppress returning light from downstream optics to reduce feedback into a high-performance laser source and support stable operation.
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Technical specifications
Compare the listed configurations and match the specifications to your setup.
Jump to a specification table (3)
15 specification rows.
UV, visible and infrared configurations
4 entriesScroll horizontally to compare all columns
| Spectral band | Center wavelength options (nm) | Clear aperture options (mm) |
|---|---|---|
| Ultraviolet | 308 / 343 / 355 | 2.5 |
| Visible | 405 / 450 / 488 / 532 / 633 / 780 / 785 / 795 | 2.5 / 5 |
| Infrared | 852 / 920 | 2.5 / 5 |
| Infrared | 1030 / 1064 | 3 / 5 / 8 / 10 / 12 / 15 / 20 |
These are discrete center-wavelength options, not a continuous operating band. Custom large apertures of 10, 15, 20 and 25 mm are available on request; confirm the wavelength and aperture combination for your configuration.
Configurable-range optical performance
3 entries| Parameter | Specification and test conditions |
|---|---|
| Isolation | ≥30 dB at 25 °C |
| Transmission | >90% at 25 °C |
| Laser-induced damage threshold | >10 J/cm² at 1064 nm, 10 ns, 10 Hz |
The damage threshold is specified at 1064 nm with 10 ns pulses at 10 Hz. Confirm power handling for other wavelengths, pulse durations, repetition rates and continuous-wave operation.
C-HP standard models
8 entriesScroll horizontally to compare all columns
| Model | C-HP-3-405 | C-HP-2-532 | C-HP-3-633 | C-HP-2.3-785 |
|---|---|---|---|---|
| Center Wavelength | 405 nm | 532 nm | 633 nm | 785 nm |
| Operating Wavelength Range | ±10 nm | ±10 nm | ±10 nm | ±10 nm |
| Peak Transmission | >90% | >93% | >93% | >93% |
| Clear Aperture | 3 mm | 2 mm | 3 mm | 2.3 mm |
| Isolation | ≥25 dB | ≥25 dB | ≥25 dB | ≥25 dB |
| Damage Threshold | 10 J/cm² at 10 ns | 10 J/cm² at 10 ns | 10 J/cm² at 10 ns | 10 J/cm² at 10 ns |
| Storage Temperature | -20 to 70 °C | -20 to 70 °C | -20 to 70 °C | -20 to 70 °C |
| Operating Temperature | 10 to 30 °C | 10 to 30 °C | 10 to 30 °C | 10 to 30 °C |
These four named C-HP models retain their own aperture, transmission and ≥25 dB isolation ratings. The configurable-range ≥30 dB specification above is not a revised rating for these models.
Build around your experiment
What to specify
Share these details with your enquiry so we can match the component to your optical setup.
- 01Exact center wavelength and required operating bandwidth; the listed wavelengths are separate configurations.
- 02Beam diameter, polarization and required clear aperture. Custom apertures of 10, 15, 20 and 25 mm are available on request.
- 03Continuous or pulsed power, pulse energy, pulse duration and repetition rate. The >10 J/cm² damage threshold is specified at 1064 nm, 10 ns and 10 Hz.
- 04Required isolation and transmission at the operating temperature, plus mounting footprint and beam height. Confirm the selected configuration or named C-HP model.
Application context
Why this design is used
Precision optical measurement
Isolate the source from reflections in the measurement path. Match wavelength, beam aperture and polarization to the instrument before selecting a configuration.
Optical communication systems
Protect a free-space laser path from reverse-propagating light, with isolation and transmission selected for the source wavelength and optical power budget.
Technical FAQ
Configuration questions for Faraday Isolator
Which wavelengths and apertures are available?
The configurable range lists 308, 343 and 355 nm with a 2.5 mm aperture; 405, 450, 488, 532, 633, 780, 785, 795, 852 and 920 nm with 2.5 or 5 mm apertures; and 1030 or 1064 nm with 3, 5, 8, 10, 12, 15 or 20 mm apertures. Custom large apertures, including 25 mm, can be requested. Each center wavelength is a separate configuration, so confirm the required wavelength, bandwidth and aperture together.
What isolation and transmission are specified?
The configurable range specifies isolation of at least 30 dB and transmission above 90% at 25 °C. The four named C-HP standard models are listed separately with their own isolation of at least 25 dB, transmission, aperture and ±10 nm operating range.
Under which conditions is the damage threshold specified?
The configurable-range laser-induced damage threshold is greater than 10 J/cm² at 1064 nm with 10 ns pulses at 10 Hz. Confirm the applicable limit for other wavelengths, pulse durations, repetition rates or continuous-wave operation when requesting a configuration.
Technical documents
Keep the specifications at hand when planning your setup.
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Find the right configuration
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