An Optical Power Determination Method for Optical Transmission Analysis of Integrated Lasers
A technology for integrating lasers and determining methods, applied in the field of integrated lasers, can solve the problems that the optical power of integrated lasers cannot be determined, and the reflectivity of the light-emitting surface of integrated lasers cannot be directly measured, etc., and achieves the effect of simple calculation methods.
Active Publication Date: 2021-08-17
SUZHOU JUZHEN PHOTOELECTRIC
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Problems solved by technology
[0004] In view of this, the embodiment of the present invention provides a method for determining the optical power of an integrated laser light transmission analysis, so as to solve the problem that the reflectivity of the light-emitting surface of the integrated laser cannot be directly measured in the prior art, and thus the integrated laser cannot be determined. The problem of optical power
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[0041] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0042] In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as there is no conflict with each other.
[0043] An embodiment of the present invention provides a method for determining optical power for integrated laser optical transmission analysis, such as figure 1 As shown, the method specifically includes:
[0044] Step S1: Obtain optical transmission data.
[0045] In the embodiment of the present inventi...
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Abstract
The invention provides a method for determining the optical power used in the optical transmission analysis of integrated lasers, including: obtaining optical transmission data; measuring the power values of non-integrated and integrated lasers with different cavity lengths at different currents; According to the power value below, each current power curve is drawn; according to each current power curve, the measured threshold current of each laser is obtained; according to the optical transmission data, the relationship between optical gain and threshold current density, the non-integrated threshold gain calculation formula, and the integrated threshold gain calculation The optical power of the integrated laser is obtained from the formula and the measured threshold current of each laser. The optical power determination method for integrated laser light transmission analysis provided by the invention has a simple calculation method, and solves the problem that the reflectivity of the light-emitting surface of the integrated laser cannot be directly measured, and thus the optical power of the integrated laser cannot be determined.
Description
technical field [0001] The invention relates to the field of integrated lasers, in particular to an optical power determination method for analyzing the light transmission of integrated lasers. Background technique [0002] A semiconductor laser includes a resonant cavity and a highly reflective and light-emitting mirror. The reflectivity of the light-emitting mirror affects the output power of the laser and the value of the laser's pre-value current. Traditionally, the reflectivity of the laser mirror is determined by the mirror coating, but with the advent of the era of big data , The optical transmission between chips requires the use of integrated photonic circuits in order to achieve smaller volume, better efficiency and more power saving, making the application of integrated lasers more and more common. [0003] In this case, the reflectivity of the laser mirror will change from the original coating to the equivalent refractive index of the coating, air (the distance b...
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IPC IPC(8): G01M11/00G01J1/00
CPCG01J1/00G01M11/00
Inventor 不公告发明人
Owner SUZHOU JUZHEN PHOTOELECTRIC