LD definition

Views Updated: Dec 15, 2025

Abbreviation

Pronunciation

/ˌel diː dɪfɪˈnɪʃən/

Through the analysis of the loss and threshold characteristics of a laser diode ( LD ), the threshold current density of LD with external feedback is calculated, according to the theory of multi-beam interference and the definition of equivalent reflection factor.
Based on this model, the definition of optical gain factor is given. The factor is determined by LD micro-structural parameters, and reflects the sensitive degree of ionization effect on the LD.

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