Nonlinear analysis of surface-emitting distributed feedback lasers

Journal Article · Sat Dec 01 00:00:00 EST 1990 · IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (USA)

DOI:https://doi.org/10.1109/3.64341· OSTI ID:5883618

Macomber, S H ^[1]

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1. Hughes Danbury Optical Systems, Inc., Danbury, CT (US)

An analysis of surface-emitting distributed feedback lasers under conditions above threshold is presented. The coupled-wave equations are integrated numerically using a self-consistent technique that includes the effects of gain saturation, carrier diffusion, antiguiding, and free-carrier loss. The laser threshold current and slope efficiency are determined as a function of the stripe length and p-layer thickness where it is found that the device efficiency can be very high. Antiguiding, which varies when the grating is mistuned with respect to the gain peak, influences the slope, threshold, and shape of the emission far field. Small variations in the longitudinal index of refraction are shown to significantly effect the far field intensity profile.

• OSTI ID: 5883618
• Journal Information: IEEE Journal of Quantum Electronics (Institute of Electrical and Electronics Engineers); (USA), Vol. 26:12; ISSN 0018-9197
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
SEMICONDUCTOR LASERS
NONLINEAR PROBLEMS
COUPLING
EFFICIENCY
FEEDBACK
GAIN
GRATINGS
NUMERICAL SOLUTION
REFRACTIVITY
SATURATION
SURFACES
THRESHOLD ENERGY
WAVE EQUATIONS
AMPLIFICATION
DIFFERENTIAL EQUATIONS
ENERGY
EQUATIONS
LASERS
OPTICAL PROPERTIES
PARTIAL DIFFERENTIAL EQUATIONS
PHYSICAL PROPERTIES
SEMICONDUCTOR DEVICES
SOLID STATE LASERS
426002* - Engineering- Lasers & Masers- (1990-)