Thermal response of a packaged narrowband optical filter based on biconically tapered depressed-cladding fibre

摘要

The thermal response of packaged biconic taper filter with a free spectral range of 1.7 nm is investigated over a temperature range of 0-70 degrees C. The filter length dependence with temperature is estimated from the spectral offset. This device presented thermal stability of 3 x 10(-3) nm/degrees C, measured at lambda(0) = 1550 nm.