Multiconstituent optical fiber and method for producing same

Details Multiconstituent optical fiber and method for producing same Multiconstituent optical fiber and method for producing same

C - Chemistry, Metallurgy

03

B

117/85, 88/97

C03B 37/018 (2006.01) C03C 13/04 (2006.01) G02B 6/02 (2006.01)

Patent

CA 1274127

MULTICONSTITUENT OPTICAL FIBER AND METHOD FOR PRODUCING SAME ABSTRACT Silica-based optical fiber comprising at least a core and a cladding surrounding the core, both core and cladding material produced by a vapor phase deposition process. The core and/or the cladding comprise at least two substituents, one chosen from Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr, Ba, and the 4f-type rare earths (the "modifiers"), and the other chosen from B, Al, Ga, In, P, As, and Sb (the "homogenizers"). The maximum concentration of the substituents in the fiber is such that 3 < (n1M+n2H)/H < 20, preferably < 10, where n1 and n2 are the valences of the modifier and the homogenizer, respectively, and M and H are the concentration, in mole %, of modifier and homogenizer, respectively. Fiber according to the invention comprises at least 50, frequently more than 80% by weight, SiO2, and further has a maximum modifier concentration of at least 0.2 mole %, preferably at least 1 mole %. The presence of homogenizer frequently permits achievement of modifier concentrations that lead to phase separation or crystallization in prior art fibers. Disclosed is also a method for producing optical fiber, the method comprising forming a metal halide complex having a relatively high vapor pressure. (Fig. 1)

501358

Affiliated with

Also associated with

Rating

Multiconstituent optical fiber and method for producing same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multiconstituent optical fiber and method for producing same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiconstituent optical fiber and method for producing same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1304068