Design of single-mode step-tapered waveguide sections

Journal Article · Sat Jan 31 23:00:00 EST 1987 · IEEE J. Quant. Electron.; (United States)

DOI:https://doi.org/10.1109/JQE.1987.1073307· OSTI ID:6865029

Suchoski, Jr, P G; Ramaswamy, R V

Single-mode step-tapered waveguide sections are analyzed in an effort to determine how the various device parameters, specifically, taper function, mask spot size, and taper length, affect power loss. The results indicate that 1) for short to medium length tapers, linear tapers exhibit the lowest loss, whereas for long tapers, all of the taper functions exhibit essentially the same loss; 2) for single-mode transitions with waveguide widths in the range 2-15 //n/m, the loss in a step-tapered waveguide section can be nearly minimized as long as the mask spot size is chosen such that there are are least 20-25 steps in the taper; and 3) the length of a given taper for minimum power loss is strongly influenced by the asymmetry of the waveguide structure.

• Research Organization: United Technologies Research Center, East Hartford, CT 06108
• OSTI ID: 6865029
• Journal Information: IEEE J. Quant. Electron.; (United States), Journal Name: IEEE J. Quant. Electron.; (United States) Vol. QE-23:2; ISSN IEJQA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ASYMMETRY
DESIGN
ENERGY LOSSES
LASERS
LOSSES
POWER LOSSES
WAVEGUIDES
WAVELENGTHS