LASER OUTPUT COUPLERS (CONT.) UV/VIS/NIR

Laser Output Couplers are designed for use as resonator mirrors for low, medium and high power lasers. They divide an incident, monochromatic beam into reflected and transmitted components with the specified intensity ratio. Substrates are available with plano/plano, plano/concave and plano/convex surfaces. They are coated on one side with an all dielectric, partial reflection coating, and on the reverse side with a high efficiency, narrowband, antireflection coating.

[Note: Thicknesses listed are exact for plano/plano substrates. For plano/concave and plano/convex substrates, center thickness (CT) depends on the radius of curvature.]

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ND:YAG HARMONIC SEPARATORS

Harmonic Separators are designed to efficiently separate Nd:YAG harmonics. The substrate iscoated on one side with an RMAX/TMAX coating that is optimized for maximum reflection of one harmonic frequency and maximum transmission of another. The reverse side is coated with a highefficiency, narrowband, anti-reflection coating.

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BROADBAND CUBE BEAMSPLITTERS

Broadband Cube Beamsplitters are formed form two right angle, 45。prisms permanentlycemented together. The hypotenuse is coated with a combination metallic and dielectric, partialreflection coating.
An incident, polychromatic beam is divided into reflected and transmitted components with a ratio (R/T) of 45/45 ±5%. All entrance and exit surfaces are coated with a high efficiency, broadband, anti-reflection coating.

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NON-POLARIZING CUBE BEAMSPLITTERS

Non-Polarizing Cube Beamsplitters are formed from two right angle, 45。prisms permanently cemented together. They are designed for applications in which it is necessary to maintain the polarization characteristics of the incident beam.
The hypotenuse is coated with an all dielectric,non-polarizing, partial reflection coating.

An incident, unpolarized, monochromatic beam is divided into reflected and transmitted components with the specified intensity ratio. All entrance and exit surfaces are coated with a high efficiency, narrowband, anti-reflection coating.

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NON-POLARIZING PLATE BEAMSPLITTERS

Non-Polarizing Plate Beamsplitters divide an incident, monochromatic beam into reflected and transmitted components with the specified intensity ratio. They are designed for applications in which it is necessary to maintain the polarization character-istics of the incident beam. The plate is coated on one side with an all dielectric, non-polarizing, partial reflection coating, and on the reverse side with a high efficiency, narrowband, anti-reflection coating.

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PLATE BEAMSPLITTERS

Plate Beamsplitters divide an incident, mono-chromatic beam into reflected and transmitted components with the specified intensity ratio. The plate is coated on one side with a polarization sensitive, partial reflection coating, and on the reverse side with a high efficiency, narrowband,anti-reflection coating.

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ZERO ORDER WAVEPLATES - λ/2, λ/4

Waveplates are used in the synthesis and analysis of polarized light. Quarter waveplates transform linearly polarized light into circularly polarized light, and vice-versa. Half waveplates rotate the plane of polarization of linearly polarized light through any angle. They also convert leftcircularly polarized light into right circularly polarized light, and vice-versa.
Zero Order Waveplates are made from two crystalline quartz plates of similar thickness, that are optically contacted together with orthogonally aligned optical axes. Retardation varies slowly with wavelength, thus they are useful with tunable or broadband sources. Retardation is a function of thickness difference between the two plates, and is essentially invariant with temperature.

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MULTIPLE ORDER WAVEPLATES - λ/2, λ/4

Waveplates are used in the synthesis and analysis of polarized light. Quarter waveplatestransform linearly polarized light into circularly polarized light, and vice-versa. Half waveplates rotate the plane of polarization of linearly polarized light through any angle. They also convert leftcircularly polarized light into right circularly polarized light, and vice-versa. Multiple Order Waveplates are made from a single crystalline quartz plate. Retardation varies quickly with wavelength, thus they are generally useful only at their design wavelength. Retardation is also a function of plate thickness and is slightly temperature dependent due to thermal expansion

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BROADBAND POLARIZING CUBE BEAMSPLITTERS

Broadband Polarizing Cube Beamsplitters are formed from two right angle, 45。prisms permanently cemented together. The hypotenuse is coated with an all dielectric, polarization sensitive coating designed to separate an inciedent, unpolarized, polychromatic beam into its S and P polarization components. The extinction ratio (TP/TS) exceed 500:1 in the transmitted beam. The two orthogonally polarized beams emerge from the cube at 90。with respect to each other. All entrance and exit surfaces are coated with a high efficiency, broadband, anti-reflection coating.

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UV POLARIZING CUBE BEAMSPLITTERS

UV Polarizing Cube Beamsplitters are formed from two right angle, 45。prisms optically contacted together. The hypotenuse is coated with an all dielectric, polarization sensitive coating designed to separate an incident, unpolarized, monochromatic beam into its S and P polarization components. The extinction ratio (TP/TS)exceeds 200:1 in the transmitted beam. The two orthogonally polarized beams emerge from the cube at 90。with respect to each other. All entrance and exit surfaces are coated with a high efficiency, narrowband, anti-reflection coating.

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HIGH POWER POLARIZING CUBE BEAMSPLITTERS

High Power Polarizing Cube Beamsplitters were specifically developed for use in high powerpulsed and CW laser applictions. They are formed from two right angle, 45。prisms opticallycontacted together. The hypotenuse is coated with an all dielectric, polarization sensitive coatingdesigned to separate an incident, unpolarized, monochromatic beam into its S and P polarizationcomponents.
The extinction ratio (TP/TSs) exceeds 200:1 in the transmitted beam. The twoorthogonally polarized beams emerge from the cube at 90。with respect to each other. All entrance and exit surfaces are coated with a high efficiency, narrowband, anti-reflection coating.

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POLARIZING CUBE BEAMSPLITTERS

Polarizing Cube Beamsplitters are formed from two right angle, 45。prisms permanently cemented together.
The hypotenuse is coated with an all dielectric, polarization sensitive coating designed to separate an incident,
unpolarized, monochromatic beam into its S and P polarization components. The extinction ratio (TP/TS) exceeds
1000:1 in the transmitted beam. The two orthogonally polarized beams emerge from the cube at 90。with respect
to each other. All entrance and exit surfaces are coated with a high efficiency, narrowband, anti-reflection coating.

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IR THIN FILM PLATE POLARIZERS

IR Thin Film Plate Polarizers were developed specifically for use in high power CO₂ laser applications. Designed to operate at Brewster’s Angle, they separate an incident, unpolarized, monochromatic beam into its S and P polarization components. The extinction ratio (TP/TS) exceeds 1`00:1 in the transmitted beam. Maximum effciency is achieved by fine angular tuning of the plate about θB. These all dielectric coatings are highly sensitive to wavelength and angle of incidence.

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HIGH POWER THIN FILM PLATE POLARIZERS

High Power Thin Film Plate Polarizers were developed specifically for use in high power pulsedand CW laser applications. Designed to operate at Brewster’s Angle, then separate an incident unpolarized, monochromatic beam into its S and P polarization components.
The extinction ratio (Tp/Ts) exceeds 200:1 (for λ≥ 400) nm and 100:1 (for λ〈400 nm) in the transmitted beam.
Maximum efficiency is achieved by fine angular tuning of the plate about θB. These all dielectric coatings are highly sensitive to wavelength and angle of incidence.

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FILTER COATINGS INFRARED

DICHROIC FILTER : SHORT WAVE PASS (SWP) & LONG WAVE PASS (LWP)

Dichroic Filter coatings are designed to transmit one spectral region (passband) and reflectanother (rejection band).
The filter is a Short Wave Pass if the passband is to the left of the transition slope, and a Long Wave Pass if the passband is to the right of the slope.

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FILTER COATINGS VISIBLE / NEAR IR

DICHROIC FILTER : SHORT WAVE PASS (SWP) & LONG WAVE PASS (LWP)

Dichroic Filter coatings are designed to transmit one spectral region (passband) and reflectanother (refection band). The filter is a Short Wave Pass if the passband is to the left of the transition slope, and a Long Wave Pass if the passband is to the right of the slope. The advantages of dichroic filters over colored glass filters are: 1) the rejection band is reflected rather than absorbed; 2) steeper transition slope between the passband and the rejection band; i.e. sharper cut-on or cut-off; 3) coatings can be custom designed for specific center wavelengths.

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FILTER COATINGS UV / EXCIMER

HROIC FILTER : SHORT WAVE PASS (SWP) & LONG WAVE PASS (LWP)

Dichroic Filter coatings are designed to transmit one spectral region (passband) and reflect another (rejection band). The filter is a Short Wave Pass if the passband is to the left of the transition slope, and a Long Wave Pass if the passband is to the right of the slope.
The advantages of dichroic filters over colored glass filters arc: 1) the rejection band is reflected rether than absorbed; 2) steeper transition slope between the passband and the rejection band; i.e. sharper cut-on or cut-off; 3) coatings can be custom designed for specific center wavelengths.

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THIN FILM PLATE POLARIZER (TFP)

Thin Film Plate Polarizer coatings are applied to window substrates at Brewster’s angle, these coatings separate an incident laser beam into S and P polarization components.
The extinction ratio (TP/TS) exceeds 500 : 1 (100:1 for UV and IR coatings.) Coatings for high power wavelength use special materials that are able to withstand higher power than standard thin film plate polarizer coatings.
These all dielectric coatings are sensitive to angle of incidence.

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HIGH POWER POLARIZING BEAMSPLITTER CUBE (HPC)

High Power Polarizing Beamsplitter Cube coatings are deposited on the hypotenuse of right angle prisms that are optically contacted. They are designed to separate an incident beam into its S and P polarization components with an average extinction ratio (TP/TS) in excess of 500 : 1.
The incident energy is split into two orthogonally polarized beams that emerge at 90。with respect to each other.
These coatings were developed specifically for use in high power pulsed and CW laser applications.

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BROADBAND POLARIZING BEAMSPLITTER CUBE (BPC)

Broadband Polarizing Beamsplitter Cube coatings are deposited between two right angle prisms that are permanently cemented together. They are designed to separate broad incident beam into its S and P polarization components with an average extinction ratio (TP/TS) in excess of 500 : 1.
The incident energy is split into two orthogonally polarized beams that emerge at 90。with respect to each other. These coatings are also useful for combining two orthogonally polarized beams.

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