Optical: systems and elements – Optical frequency converter
Patent
1998-09-16
2000-11-28
Lee, John D.
Optical: systems and elements
Optical frequency converter
359495, 359497, 385 11, G02F 135
Patent
active
061543098
ABSTRACT:
A sampling light source generates a pulse sequence of sampling light having a pulse width smaller than that of target light and a single plane of polarization. A polarization beam splitting unit splits each of the sampling light output from the sampling light source, and the target light into two light components having planes of polarization shifted 90.degree. from each other, multiplexes each pair of split sampling and target light components having planes of polarization shifted 90.degree. from each other, and outputs the respective multiplexed light components to different optical paths. A pair of nonlinear optical members each generate a cross-correlation signal based on the sampling and target light components output from the polarization beam splitting unit to each optical path and having planes of polarization shifted 90.degree. from each other as sum frequency light. A pair of photodetectors each convert the sum frequency light output from each of the pair of nonlinear optical members into an electrical signal. A signal processing unit adds the electrical signals output from the pair of photodetectors, processes the resultant electrical signal, and displays its pulse waveform. With this operation, the pulse waveform of the target light can be accurately measured regardless of variations in the polarized state of the target light.
REFERENCES:
patent: 4575193 (1986-03-01), Greivenkamp, Jr.
patent: 4702557 (1987-10-01), Beckmann et al.
patent: 5471340 (1995-11-01), Cheng et al.
patent: 5872878 (1999-02-01), Bergmann
Kawanishi Satoki
Otani Akihito
Otsubo Toshinobu
Takara Hidehiko
Anritsu Corporation
Lee John D.
Nippon Telegraph and Telephone Corporation
LandOfFree
Complementary optical sampling waveform measuring apparatus and does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Complementary optical sampling waveform measuring apparatus and , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Complementary optical sampling waveform measuring apparatus and will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1731565