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GFM/GCM
Diameter φD
Thickness t
Radius of curvature r
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This mirror has a negative dispersion and can be used for pulse compression in a femtosecond laser system.

◦These mirrors are more compact and exhibit a smaller optical loss than the conventional prisms used for pulse compression.
◦Center wavelength is for Ti: Sapphire at 800nm.
◦Plano and concave substrates designed for cavities are available.

Related product
Products
Technical Data
Documents/Downloads
Guide

▶Fabrication of negative dispersion mirror is also available.
▶We can also provide high power negative dispersion mirror.
▶Also available are our surface flatness guarantee (HTFM) mirrors with accuracy guarantee after surface coating.
W3002
▶Please refer to here for "Wavelength Characteristic Data (Reference Data, Transmittance: T[%]) " for each wavelength.

Attention

▶The angle of incident for this series is 0 to 20 degrees and the laser dispersion may not be corrected for other angles. Please contact our Sales Division for further details.

Common Specifications
MaterialBK7
CoatingDielectric multi-layer coating
Incident angle0° - 20°
Surface flatnessλ/10
Parallelism<5″(only flat mirror)
Surface Quality (Scratch-Dig)10−5
Clear aperture80% of the diameter
Rear SurfacePolished
Outline Drawing

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Schematic

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Typical Reflectance Data
■GFM/GCM

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R: Reflectance

Click here for numerical data in tabular format (Reference Data, EXCEL file format).
Group Delay Data (for reference only)
■GFM/GCM

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R: Reflectance

Click here for numerical data in tabular format (Reference Data, EXCEL file format).
Spec
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Part Number
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    JP Yen Stock Qty
GFM-12.7C05-800
GFM-25.4C05-800
GFM-30C05-800
GCM-30C07-50-800
GCM-30C07-100-800
GCM-30C05-500-800
GCM-30C05-1000-800

700 - 900nm

φ12.7mm

5mm

>99.8%

0.5J/cm2

700 - 900nm

φ25.4mm

5mm

>99.8%

0.5J/cm2

700 - 900nm

φ30mm

5mm

>99.8%

0.5J/cm2

700 - 900nm

φ30mm

7mm

50mm

>99.8%

0.5J/cm2

700 - 900nm

φ30mm

7mm

100mm

>99.8%

0.5J/cm2

700 - 900nm

φ30mm

5mm

500mm

>99.8%

0.5J/cm2

700 - 900nm

φ30mm

5mm

1000mm

>99.8%

0.5J/cm2

RoHS  

¥81,000

LOW
RoHS  

¥86,400

LOW
RoHS  

¥90,000

LOW
RoHS  

¥90,000

CONTACT
US
RoHS  

¥90,000

CONTACT
US
RoHS  

¥90,000

CONTACT
US
RoHS  

¥90,000

CONTACT
US