Title :
1×N fibre coupler employing diffractive optical element
Author :
Pan, J.J. ; Zhu, T.
Author_Institution :
E-Tek Dynamics Inc., San Jose, CA, USA
fDate :
2/18/1999 12:00:00 AM
Abstract :
A new broadband 1×N fibre coupler has been developed which employs diffractive optical elements (DOEs). The fibre coupler consists of an input fibre collimator, two aspherical lenses, a specially designed DOE and arrayed output fibres. The demonstrated 1×8 fibre coupler has a low polarisation dependent loss of ⩽0.05 dB an excess loss of ⩽2.4 dB, and good uniformity of ±0.25 dB over a broad wavelength range of 1510-1570 nm
Keywords :
aspherical optics; diffractive optical elements; lenses; optical fibre couplers; optical fibre losses; 0.05 dB; 1510 to 1570 nm; 2.4 dB; arrayed output fibres; aspherical lenses; broadband 1×N fibre coupler; diffractive optical element; excess loss; fibre coupler; input fibre collimator; insertion loss; low polarisation dependent loss;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19990254
