EURYS COHERENT | Alldatasheet
Document overview
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Technical content
The Coherent EURYS Broadband Rotators rotate the plane of polarized light 90° at 800 nm in the forward direction and 0° from 720 nm to 950 nm in the reverse direction while maintaining the light’s linear polarization. When placed between crossed polarizers, a broadband Faraday rotator becomes a broadband optical isolator. EURYS Broadband Optical Isolators provide high transmission in the forward direction and strongly attenuate back-reflected light between 720 nm to 950 nm in the reverse direction protecting Ti:Sapphire oscillators from the deleterious effects of back reflections and also eliminating preferential lasing at the lower gain wavelengths of Ti:Sapphire lasers. Utilizing optics with low refractive indices and short optical pathlengths minimizes pulse broadening due to dispersion in the optics associated with ultra-short laser pulses. Broadband Faraday Rotators and Isolators – 720 nm to 950 nm
FEATURES
- Completely passive; no tuning required
- All isolators contain rejected beam escape ports
- Adjustable to handle any angle of linear input polarization without additional optics EURYS Laser Components and Accessories
APPLICATIONS
- Protect Ti:Sapphire oscillators from back reflections
- Eliminate preferential lasing at lower gain wavelengths of Ti:Sapphire lasers
- Eliminate ASE from high-gain amplifiers
- Minimize pulse broadening due to dispersion in the optics OPTIONS
- Input/Output waveplates available
- Precision mounting options
- Precision rejected beam pointing available
- Customization available
© 2023 Coherent Corp. Legal notices : coherent.com/legal For more information www.coherent.com Specifications Rotator Isolator1 Clear Aperture (mm) 5 5 Center Wavelength (nm) 800 800 Spectral Range (nm) 720 to 950 720 to 950 Transmission at 22 °C (%) >98 >92 Isolation at 22 °C (dB) N/A >33 Damage Threshold >3.4 J/cm² at 10 ns >1 J/cm² at 8 ps >3.4 J/cm² at 10 ns >1 J/cm² at 8 ps Notes: 1. Escape ports should be used if rejected light is >1 W or 0.15 J/cm² at 10 ns or forward light is >25 W. All stray beams should be properly terminated. Dispersion: Some pulse broadening does occur when using Coherent’s EURYS Broadband Isolators. The Sellmeiers Equation for TGG used in the broadband isolators is: Ed Eo E2 - (hc / l)2 where Eo = 9.223eV and Ed = 25.208eV Effect of Wavelength on Performance 720 Wavelength (nm) 770 820 870 920 100 Transmission (%) Isolation (dB) Isolation Transmission