Patent ID: 7076133
Filing Date: 2006-07-11
Classification: G02B

Abstract:
1. An optical arrangement, comprising a first waveguiding core having a first radius and a first index of refraction; a first cladding surrounding said first core, the first cladding having a second radius and a second index of refraction that is lower than said first index of refraction, at least for a predetermined wavelength range; an outer medium interfacing said first cladding, the outer medium having a third index of refraction that is lower than said second index of refraction, at least for said predetermined wavelength range; a deflector provided in said first waveguiding core, the deflector being operative to deflect light out from said first core in a substantially transverse direction, wherein the ratio between said second radius and said first radius is such that light emanating from the first core is collimated, or converged towards a focus, by the interface between the first cladding and the outer medium; a second waveguiding core and a second cladding surrounding said second core; the outer medium interfacing both the first cladding and the second cladding, and said second core being provided at a location where light emanating from said first core exhibits a focus; and an external resonator enclosing both waveguiding cores and both claddings, the resonator is defined by first and second mirrors.