Performance analysis of CW laser driving circuits

• Autorzy: Śliwczyński, Ł. , Lipiński, M. , Krehlik, P. , Wolczko, A.
• Języki publikacji: EN

Abstrakty

EN

In the paper the most popular structures of the semiconductor laser drives are presented: driver with the mean-value loop and driver with the wideband loop. Both DC and AC performance are analysed and dependence of the output optical power on different circuit parameters is shown. Some remarks on the laser safety in the considered driver structures are also made. The inherent low frequency (LF) limitation of the mean-value loop, its dependence on the open loop gain and particular circuit structure are examined. The effects resulting from the LF cut-off shown along with their impact on the driver dynamic performance. Good high frequency (HF) performance of the mean-value loop is pointed out. Analysis of the wideband loop is also carried out and especially the difficulties in practical realisation are considered. The need of trade-off between good DC and AC performance is shown. The particular case of the maximally flat frequency response shaping is recommended as being a reasonable choice for both frequency and pulse performance and some practical formulas are given. The lack of LF cut-off and relatively poor HF performance in the wideband loop driver are pointed out. As the final conclusion a general performance comparison between mean-value loop and wideband loop driver structures is carried out.

• Czasopismo: Opto-Electronics Review
• Rocznik: 1998
• Tom: Vol. 6, No. 2
• Strony: 131-139
• Opis fizyczny: Bibliogr. 12 poz.

Twórcy

autor

Śliwczyński, Ł.

autor

Lipiński, M.

autor

Krehlik, P.

autor

Wolczko, A.

• Institute of Electronics, University of Mining and and Metallurgy, 30 Mickiewica Ave., 30-059 Cracow, Poland,