光貿易株式会社
〒113-0034
東京都文京区湯島3-13-8
湯島不二ビル301
電話番号：03-3832-3117
FAX番号 ：03-3832-3118
General Photonics社
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■メーカーの紹介 |
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| ■製品概要／Product Overview | |
| General Photonics’ high-speed variable differential group delay (DGD) line provides a variable amount of group delay difference between two linear orthogonal polarization states. DGD is a key component for PMD emulation and compensation. ProDelay? can digitally vary the amount of 1st order PMD from -45 ps to 45 ps with a resolution of 1.36 ps (6-bit resolution) in less than 250 μs. With an integrated circuit board and a software package, the device can easily be controlled with a computer or a microprocessor. The circuit board has a 10-pin TTL digital I/O port to interface with any digital control signal, either from a control circuit board or a computer. An optional Labview PMD emulation software can also available to generate Maxwellian DGD distribution of any average value. In addition to PMD compensation and emulation, this patented device can be used for precision TDM bit alignment. | |
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PDFファイル：127kb |
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| ■特徴／Key Features |
| Digitally switched DGD 250 μs delay switching speed ± 45 ps or 90 ps total DGD 6-bit (1.36 ps) delay resolution Compact Patented |
| ■アプリケーション／Application |
| Polarization mode dispersion compensation PMD emulation TDM bit alignment |