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Date : 2006/10/19, Hit : 2452
제목    Phase Mask
작성자   Yoon
화일   2006101900_Phase_Mask_info.pdf (320.57 KB | Download : 1440)   



"Rectangular Phase Masks" are manufactured in a variety of sizes and can be chirped or     have a uniform period. These advanced phase masks are holographically recorded, eliminating     “stitching ” that are a cause of side lobes.
+ Typical FBG applications:
   - Dense wavelength division multiplexing (DWDM) filters, and add/drop modules
   - Frequency lockers and pump stabilizers
   - Chirped phase masks used to manufacture gain-flattening filters for erbium-doped fiber amplifiers
+ Ordering Information:
   - RPM (RPMC if chirped) - (wavelength of laser) - (mask period) - [(grating dimension (W x L))      substrate dimension (W x L)]

"Long Phase Mask" has a 120 mm long grating and is ideal for applications such as     dispersion compensation and dense wavelength division multiplexing (DWDM). Our proprietary     holographic recording method also eliminates “stitching errors”, which are a cause of side lobes.
+ Typical FBG applications:
   - Dispersion compensation gratings (DCGs)
   - DWDM
   - Narrow bands filters
+ Ordering Information:
   - LPM (LPMC if chirped) - (wavelength of laser) - (mask period) - [(grating dimension (W x L))      substrate dimension (W x L)]

"Apodized Phase Mask"A phase mask without apodization results in an FBG with     undesirable sidelobes in its spectral response. The Lasiris Linearly Apodized Phase Mask     remedies this problem. In this type of phase mask, the grating depth is a Gaussian function of     position, with a customer-specified FWHM.
+ Ordering Information:
   - LAPM (APMC if chirped) - (wavelength of laser) - (mask period) - (mask dimension) - (FWHM)

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