All-optical code conversion method with wavelength conversion function
A wavelength conversion and conversion method technology, which is applied in optics, nonlinear optics, instruments, etc., can solve the problems of limiting the flexibility of code conversion technology and low efficiency of four-wave mixing effect, and achieves wide working wavelength range and high conversion efficiency. High, responsive effects
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0016] A code conversion method that can realize all-optical NRZ to RZ, and can complete the all-optical multicast function while code conversion, the specific principle is as follows figure 1 : The signal light carrying data information is generated by modulation of continuous light with a wavelength of λs, which is an NRZ code data stream, and the pump light is a narrow pulse width optical pulse sequence with a wavelength of λp, which can be regarded as a bit full "1" with a small duty ratio "RZ code, couple the two, and inject the high linear photonic crystal fiber after further power amplification. Because the dispersion of the photonic crystal fiber is flat, it can meet the phase matching condition in a wide wavelength range, and the obvious four-wave mixing effect occurs. Two beams of idler light are generated on both sides of the signal light and the pump light. Since the pump light is an ultrashort optical pulse with all "1" bits, it does not carry any information, and ...
Embodiment 2
[0020] Such as image 3 An example of realizing all-optical NRZ-to-RZ code conversion based on the four-wave mixing effect in a flat highly nonlinear photonic crystal fiber with dispersion. The wavelength-tunable continuous light source (Santec MLS-2100) emits continuous light with a wavelength of 1556.22nm , after the polarization controller PC1 is injected into the lithium niobate modulator, the function of the polarization controller PC1 is to ensure that the vibration direction of the incident light matches the main axis of the lithium niobate modulator, so as to achieve the best modulation effect, and the RF signal source sends out a 10GHz radio frequency signal (RF) drives the BER tester, and the pattern generator in the BER tester provides a byte length of 2 31-1. The rate is 10Gbit / s pseudo-random bit sequence (PRBS), and then drives the lithium niobate modulator to generate an NRZ optical signal with a repetition rate of 10Gbit / s. The pump light is an ultra-short pul...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com