AWG optical module based on wavelength allocation algorithm

By adopting a preparation process based on wavelength distribution algorithm in the AWG optical module, combining the thermal expansion coefficient matching of quartz material and silica cladding, and incorporating phosphorus pentoxide and boron trioxide into the cladding, the problem that the AWG optical module cannot effectively reduce the polarization-related wavelengths during the optimization process is solved, and the performance optimization of the AWG optical module is achieved.

CN119717136APending Publication Date: 2025-03-28WUHAN ETERN OPTOELECTRONICS TECH CO LTD
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Patent Information

Application Number
CN202311287923.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-09-28
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

The existing AWG optical modules cannot effectively reduce the polarization-related wavelength (WPD) during the optimization process, resulting in poor performance.

Method used

The AWG optical module preparation process based on the wavelength allocation algorithm is adopted. Through surface etching, deposition of doped cladding, coating, photolithography, secondary etching, degluing, deposition of undoped cladding and mechanical polishing, the thermal expansion coefficient matching of quartz material and silica cladding is combined, and phosphorus pentoxide and boron trioxide are incorporated into the cladding to optimize WPD.

Benefits of technology

The polarization correlation wavelength WPD of the AWG optical module is effectively reduced, and the performance of the entire AWG device is optimized, so that its polarization correlation wavelength is reduced to within 0.05nm.

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Abstract

The invention provides an AWG optical module based on a wavelength allocation algorithm, and relates to the technical field of AWG optical modules. Quartz and silicon dioxide with the same thermal expansion coefficient are respectively used as a substrate and a cladding when the AWG optical module is processed and used; oxide phosphorus pentoxide and diboron trioxide are doped into the cladding, so that the expansion coefficient of array guided waves with the wave spacing of 1-5 microns at the joint of flat guided waves is increased to 2.42 * 10 <-6 > / DEG C, and the polarization dependent wavelength WPD of the waveguide at the joint can be reduced to be within 0.05 nm; the thermal expansion coefficients of the quartz substrate and the undoped silicon dioxide cladding are the same, so that the WPD of the whole AWG device can be optimized to be within 0.05 nm, the polarization-dependent wavelength is reduced, and the performance optimization use of the AWG optical module is achieved.
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