Yield analysis of SLM DFB lasers with an axially-flattened internal field

Journal Article · Thu Jun 01 00:00:00 EDT 1989 · IEEE J. Quant. Electron.; (United States)

DOI:https://doi.org/10.1109/3.29264· OSTI ID:5851791

Kinoshita, J; Matsumoto, K

The results of the yield analysis of distributed feedback (DFB) lasers which can operate in a single longitudinal mode (SLM) are presented. A new DFB structure with two /lambda//8 phase-shifters is analyzed, together with conventional structures with no shifters and a single shifter. The SLM yield is defined such that the lasers satisfy the criteria of both normalized threshold gain difference (/Delta//alpha/L) and a flatness factor of the internal field profile along the cavity direction. Flattening the field profile is indispensable to minimize the effect of spatial hole-burning. The SLM behavior of the double /lambda//8 shift DFB lasers with ideally zero reflectivity facets is also analyzed as a parameter of the distance between the shifters (/Delta/L).

• Research Organization: Electron Device Lab., Toshiba Corp., Isogo-ku, Yokohama 235 (JP)
• OSTI ID: 5851791
• Journal Information: IEEE J. Quant. Electron.; (United States), Vol. 25:6
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
SEMICONDUCTOR LASERS
FEEDBACK
CHEMICAL REACTION YIELD
ELECTRON-HOLE COUPLING
GAIN
MODE LOCKING
PARAMETRIC ANALYSIS
PHASE SHIFT
REFLECTIVITY
AMPLIFICATION
LASERS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
SEMICONDUCTOR DEVICES
SOLID STATE LASERS
SURFACE PROPERTIES
YIELDS
420300* - Engineering- Lasers- (-1989)