Patent ID: 6532321
Filing Date: 2003-03-11
Classification: G02B,G02F,Y10S

Abstract:
A fiber optic isolator device, comprising:a first optical fiber optically coupled to transmit light at first and second wavelengths along a first optical path; a wavelength separator disposed on the first optical path and adapted to direct light at the first wavelength along a second optical path and light at the second wavelength along a third optical path different from the second optical path; a wavelength combiner optically coupled to combine light propagating along the second and third optical paths into a fourth optical path; a second optical fiber optically coupled to the fourth optical path; a first optical isolator module disposed along the second optical path between the wavelength separator and the wavelength combiner; and a first collimating lens disposed to couple light between the first optical fiber and the first optical path, and to couple light between the second optical fiber and the fourth optical path.