| Two types of mirrors are often used in the lasers : output coupling mirrors and rear mirrors. OC mirrors are partially reflecting laser mirrors which are used to extract output beams from laser cavities. The partial reflector/output coupler transmission is chosen to maximize the achieved output power, although its optimum value may be lower or higher if there are other design goals, e.g. minimizing the intracavity intensities or suppressing Q-switching instabilities in a mode-locked laser.
The Rear Mirrors of resonator cavity are usually high reflection with high damage thresh-hold, nearly total reflection, minimizing losses in the optical systems. All coatings are made from dielectric coatings, these coatings are durable, easily cleaned, and resistant to laser damage. Available either broadband or narrowband, they operate efficiently over 0-45 degree angle of incidence.
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| Applications: |
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| Lamp-pumping and Diode pumping Nd:YAG or Nd:YVO4 lasers, Diode Lasers, Fiber lasers, Excimer laser, He-Ne laser, gas lasers. |
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Partial Reflecting OC Mirrors:
Wavelength range: 355 to 2000nm;
Reflection: any value between 0.2 to 99.9%; |
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Pump Resonator Mirrors:
Wavelength rang: 355 to 2000nm;
Coating types: single wavelength HR, double wavelength HR,
1064HR + 808HT, 1053nm +808HT, 1064HR +633HR, 1064HR +670HR
or customized types; |
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Substrate Materials:
BK7, UV Fused Silica, CaF2, MgF2 or customized material |
Standard Specifications:
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BK7 UV fused Silica |
CaF2, MgF2 |
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Surface Quality |
10/5 S/D |
20/10 S/D |
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Flatness |
Lambd/10 @ 633nm |
Lambda/10 @ 633nm |
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Dimensional tolerance |
+0.0 / -0.20 mm |
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Thickness Tolerance |
+/- 0.20mm |
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Centering Tolerance |
Less than 3 minutes |
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Clear Aperture |
>85% of dimension |
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Damage Threshold |
10J/cm2, 8nsec pulse; 1MW/cm2, CW at 1064nm |
Coatings:
Partial reflections, single wavelength HR, double wavelength HR,
1064HR + 808HT, 1053nm +808HT, 1064HR +633HR, 1064HR +670HR, Customized coating is available.
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Customized coatings is available |
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High Energy Partially Reflecting
(50% @ 1064nm) |
Single-wavelength High Reflecting Mirrors
(>99.8% @ 1064nm) |
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Double-wavelength High Reflecting Mirrors
(>99.7% @ 1064nm and 532nm) | |
