Glasses suitable for laser application

Claim 2

A glass composition suitable for use as an active laser component and consisting essentially of the following components in the relationship expressed according to the following atomic formula A.sub.h Be.sub.k.sup.2+ Al.sub.1.sup.3+ Nd.sub.m.sup.3+ P.sub.n.sup.5+ (O.sub.x.sup.2- F.sub.y.sup.1-) wherein A is at least one of the group Na 1+ , Li 1+ , K 1+ , Rb 1+ and Cs 1+ , neodymium is present in a laseable amount up to m = 0.015, 2x plus y is always 1, h, k, l, m and n represent the number of atoms to which they are subscripted with relation to the sum of x plus y, h is 0.08 to 0.2 total for all A atoms, k is 0.15 to 0.3 l is zero to 0.1, n is 0.02 to 0.15, and x is 2 n to 3.2 n, and wherein said glass composition has a fluorescent decay time greater than 450 microseconds at a wave length of about 1050 nm, a cross-section of stimulated emission greater than 3.3 × 10 -20 cm. 2 , and an n 2 value of less than 0.6 × 10 -13 cm. 2 /(statvolts) 2

Claim 3

A glass composition suitable for use as an active laser component and consisting essentially of the following components in the relationship expressed according to the following atomic formula Na.sub.h.sup.1+ Be.sub.k.sup.2+ Al.sub.l.sup.3+ Nd.sub.m.sup.3+ P.sub.n.sup.5+ (O.sub.x.sup.2- F.sub.y.sup.1-) wherein neodymium is present in a laseable amount up to m=0.015, 2x plus y is always 1, h, k, l, m and n represent the number of atoms to which they are subscripted with relation to the sum of x plus y, h is 0.08 to 0.2, k is 0.15 to 0.3, l is zero to 0.1, n is 0.02 to 0.15, and x is 2 n to 3.2 n, and wherein said glass composition has a fluorescent decay time greater than 450 microseconds at a wave length of about 1050 nm, a cross-section of stimulated emission greater than 3.3 × 10 -20 cm. 2 , and an n 2 value of less than 0.6 × 10 -13 cm. 2 /(statvolts) 2

Claim 4

A glass composition suitable for use as an active laser component and consisting essentially of the following components in the relationship expressed according to the following atomic formula Na.sub.h.sup.1+ Be.sub.k.sup.2+ Al.sub.l.sup.3+ Nd.sub.m.sup.3+ P.sub.n.sup.5+ (O.sub.x.sup.2- F.sub.y.sup.1-) wherein neodymium is present in a laseable amount up to m=0.015, 2x plus y is always 1, h, k, l, m and n represent the number of atoms to which they are subscripted with relation to the sum of x plus y, h is 0.08 to 0.2, k is 0.15 to 0.3, l is zero to 0.1, n is 0.02 to 0.15, and x is 2 n to 3.2 n, and wherein said glass composition has a fluorescent decay time greater than 450 microseconds at a wave length of about 1050 nm, a cross-section of stimulated emission greater than 3.3 × 10 -20 cm. 2 , and an n 2 value of less than 0.6 × 10 -13 cm. 2 /(statvolts) 2

Claim 5

A glass composition suitable for , K as an active laser component and consisting essentially of the following components in the relationship expressed according to the following atomic formula A.sub.H 38 Be.sub.k.sup.2+ Al.sub.1.sup.3+ Nd.sub.m.sup.3+ P.sub.n.sup.5+ (O.sub.x.sup.2- F.sub.y.sup.1-) wherein A is at least one of the group Na 1+ , Li 1+ , K 1+ , Rb 1+ and Cs 1+ , 2x plus y is always 1, h, k, l, m and n represent the number of atoms to which they are subscripted with relation to the sum of x plus y, h is 0.08 to 0.2 total for all A atoms, k is 0.15 to 0.3 l is zero to 0.1, m is 0.0001 to 0.015, n is 0.02 to 0.15, and x is 2 n to 3.2 n, and wherein said glass composition has a fluorescent decay time greater than 450 microseconds at a wave length of about 1050 nm, a cross-section of stimulated emission greater than 3.3 × 10 -20 cm. 2 , and an n 2 value of less than 0.6 × 10 -13 cm. 2 /(statolts) 2

Claim 6

A glass composition suitable for , K as an active laser component and consisting essentially of the following components in the relationship expressed according to the following atomic formula A.sub.H 38 Be.sub.k.sup.2+ Al.sub.1.sup.3+ Nd.sub.m.sup.3+ P.sub.n.sup.5+ (O.sub.x.sup.2- F.sub.y.sup.1-) wherein A is at least one of the group Na 1+ , Li 1+ , K 1+ , Rb 1+ and Cs 1+ , 2x plus y is always 1, h, k, l, m and n represent the number of atoms to which they are subscripted with relation to the sum of x plus y, h is 0.08 to 0.2 total for all A atoms, k is 0.15 to 0.3 l is zero to 0.1, m is 0.0001 to 0.015, n is 0.02 to 0.15, and x is 2 n to 3.2 n, and wherein said glass composition has a fluorescent decay time greater than 450 microseconds at a wave length of about 1050 nm, a cross-section of stimulated emission greater than 3.3 × 10 -20 cm. 2 , and an n 2 value of less than 0.6 × 10 -13 cm. 2 /(statolts) 2

Claim 7

A glass composition suitable for use as an active laser component and consisting essentially of the following components in the relationship expressed according to the following atomic formula Na.sub.h.sup.1+ Be.sub.k.sup.2+ Al.sub.1.sup.3+ Nd.sub.m.sup.3+ P.sub.n.sup.5+ (O.sub.x.sup.2- F.sub.y.sup.1-) wherein 2x plus y is always 1, h, k, l, m and n represent the number of atoms to which they are subscripted with relation to the sum of x plus y, h is 0.08 to 0.2, k is 0.15 to 0.3, m is 0.0001 to 0.015, l is zero to 0.1, n is 0.02 to 0.15, and x is 2 n to 3.2 n, and wherein said glass composition has a fluorescent decay time greater than 450 microseconds at a wave length of about 1050 nm, a cross-section of stimulated emission greater than 3.3 × 10 -20 cm. 2 , and an n 2 value of less than 0.6 × 10 -13 cm. 2 /(statvolts) 2

Claim 8

A glass composition suitable for use as an active laser component and consisting essentially of the following components in the relationship expressed according to the following atomic formula Na.sub.h.sup.1+ Be.sub.k.sup.2+ Al.sub.1.sup.3+ Nd.sub.m.sup.3+ P.sub.n.sup.5+ (O.sub.x.sup.2- F.sub.y.sup.1-) wherein 2x plus y is always 1, h, k, l, m and n represent the number of atoms to which they are subscripted with relation to the sum of x plus y, h is 0.08 to 0.2, k is 0.15 to 0.3, m is 0.0001 to 0.015, l is zero to 0.1, n is 0.02 to 0.15, and x is 2 n to 3.2 n, and wherein said glass composition has a fluorescent decay time greater than 450 microseconds at a wave length of about 1050 nm, a cross-section of stimulated emission greater than 3.3 × 10 -20 cm. 2 , and an n 2 value of less than 0.6 × 10 -13 cm. 2 /(statvolts) 2

Claim 9

A glass composition suitable for use as an active laser component and consisting essentially of the following components in the relationship expressed according to the following atomic formula A.sub.h Be.sub.k.sup.2+ Al.sub.1.sup.3+ Nd.sub.m.sup.3+ P.sub.n.sup.5+ (O.sub.x.sup.2- F.sub.y.sup.1-) wherein A is at least one of the group Na 1+ , Li 1+ , K 1+ , Rb 1+ and Cs 1+ , neodymium is present in a laseable amount up to m = 0.015, 2x plus y is always 1, h, k, l, m and n represent the number of atoms to which they are subscripted with relation to the sum of x plus y, h is 0.05 to 0.25 total for all A atoms, k is 0.1 to 0.35, l is zero to 0.15, n is 0.02 to 0.15, and x is 2 n to 3.2 n, and wherein said glass composition has a fluorescent decay time greater than 450 microseconds at a wave length of about 1050 nm, a cross-section of stimulated emission greater than 3.3 × 10 -20 cm. 2 , and an n 2 value of less than 0.6 × 10 -13 cm. 2 /(statvolts) 2

Claim 10

A glass composition suitable for use as an active laser component and consisting essentially of the following components in the relationship expressed according to the following atomic formula A.sub.h Be.sub.k.sup.2+ Al.sub.1.sup.3+ Nd.sub.m.sup.3+ P.sub.n.sup.5+ (O.sub.x.sup.2- F.sub.y.sup.1-) wherein A is at least one of the group Na 1+ , Li 1+ , K 1+ , Rb 1+ and Cs 1+ , neodymium is present in a laseable amount up to m = 0.015, 2x plus y is always 1, h, k, l, m and n represent the number of atoms to which they are subscripted with relation to the sum of x plus y, h is 0.05 to 0.25 total for all A atoms, k is 0.1 to 0.35, l is zero to 0.15, n is 0.02 to 0.15, and x is 2 n to 3.2 n, and wherein said glass composition has a fluorescent decay time greater than 450 microseconds at a wave length of about 1050 nm, a cross-section of stimulated emission greater than 3.3 × 10 -20 cm. 2 , and an n 2 value of less than 0.6 × 10 -13 cm. 2 /(statvolts) 2

Claim 11

A glass composition suitable for use as an active laser component and consisting essentially of the following components in the relationship expressed according to the following atomic formula Na.sub.h.sup.1+ Be.sub.k.sup.2+ Al.sub.l.sup.3+ Nd.sub.m.sup.3+ P.sub.n.sup.5+ (O.sub.x.sup.2- F.sub.y.sup.1-) wherein neodymium is present in a laseable amont up to m = 0.015, 2x plus y is always 1, h, k, l, m and n represent the number of atoms to which they are subscripted with relation to the sum of x plus y, h is 0.05 to 0.25, k is 0.1 to 0.35, l is zero to 0.15, n is 0.02 to 0.15, and x is 2 n to 3.2 n, and wherein said glass composition has a fluorescent decay time greater than 450 microseconds at a wave length of about 1050 nm, a cross-section of stimulated emission greater than 3.3 × 10 -20 cm. 2 , and an n 2 value of less than 0.6 × 10 -13 cm. 2 /(statvolts) 2

Claim 12

A glass composition suitable for use as an active laser component and consisting essentially of the following components in the relationship expressed according to the following atomic formula Na.sub.h.sup.1+ Be.sub.k.sup.2+ Al.sub.l.sup.3+ Nd.sub.m.sup.3+ P.sub.n.sup.5+ (O.sub.x.sup.2- F.sub.y.sup.1-) wherein neodymium is present in a laseable amont up to m = 0.015, 2x plus y is always 1, h, k, l, m and n represent the number of atoms to which they are subscripted with relation to the sum of x plus y, h is 0.05 to 0.25, k is 0.1 to 0.35, l is zero to 0.15, n is 0.02 to 0.15, and x is 2 n to 3.2 n, and wherein said glass composition has a fluorescent decay time greater than 450 microseconds at a wave length of about 1050 nm, a cross-section of stimulated emission greater than 3.3 × 10 -20 cm. 2 , and an n 2 value of less than 0.6 × 10 -13 cm. 2 /(statvolts) 2

Claim 13

A glass composition suitable for use as an active laser component and consisting essentially of the following components in the relationship expressed according to the following atomic formula A.sub.h Be.sub.k.sup.2+ Al.sub.l.sup.3+ Nd.sub.m.sup.3+ P.sub.n.sup.5+ (O.sub.x.sup.2- F.sub.y.sup.1-) wherein A is at least one of the group Na 1+ , Li 1+ , K 1+ , Rb 1+ and Cs 1+ , 2x plus y is always 1, h, k, l, m and n represent the number of atoms to which they are subscripted with relation to the sum of x plus y, h is 0.05 to 0.25 total for all A atoms, k is 0.1 to 0.35, l is zero to 0.15, m is 0.0001 to 0.015, n is 0.02 to 0.15, and x is 2 n to 3.2 n, and wherein said glass composition has a fluorescent decay time greater than 450 microseconds at a wave length of about 1050 nm, a cross-section of stimulated emission greater than 3.3 × 10 -20 cm. 2 , and n 2 value of less than 0.6 × 10 -13 cm. 2 /(statvolts) 2

Claim 14

A glass composition suitable for use as an active laser component and consisting essentially of the following components in the relationship expressed according to the following atomic formula A.sub.h Be.sub.k.sup.2+ Al.sub.l.sup.3+ Nd.sub.m.sup.3+ P.sub.n.sup.5+ (O.sub.x.sup.2- F.sub.y.sup.1-) wherein A is at least one of the group Na 1+ , Li 1+ , K 1+ , Rb 1+ and Cs 1+ , 2x plus y is always 1, h, k, l, m and n represent the number of atoms to which they are subscripted with relation to the sum of x plus y, h is 0.05 to 0.25 total for all A atoms, k is 0.1 to 0.35, l is zero to 0.15, m is 0.0001 to 0.015, n is 0.02 to 0.15, and x is 2 n to 3.2 n, and wherein said glass composition has a fluorescent decay time greater than 450 microseconds at a wave length of about 1050 nm, a cross-section of stimulated emission greater than 3.3 × 10 -20 cm. 2 , and n 2 value of less than 0.6 × 10 -13 cm. 2 /(statvolts) 2

Claim 15

A glass composition suitable for use as an active laser component and consisting essentially of the following components in the relationship expressed according to the following atomic formula Na.sub.h.sup.1+ Be.sub.k.sup.2+ Al.sub.l.sup.3+ Nd.sub.m.sup.3+ P.sub.n.sup.5+ (O.sub.x.sup.2- F.sub.y.sup.1-) wherein 2x plus y is always 1, k, l, m and n represent the number of atoms to which they are subscripted with relation to the sum of x plus y, h is 0.05 to 0.25, k is 0.1 to 0.35, m is 0.0001 to 0.015, l is zero to 0.15, n is 0.02 to 0.15, and x is 2 n to 3.2 n, and wherein said glass composition has a fluorescent decay time greater than 450 microseconds at a wave length of about 1050 nm, a cross-section of stimulated emission greater than 3.3 × 10 -20 cm. 2 , and an n 2 value of less than 0.6 × 10 -13 cm. 2 /(statvolts) 2

Claim 16

A glass composition suitable for use as an active laser component and consisting essentially of the following components in the relationship expressed according to the following atomic formula Na.sub.h.sup.1+ Be.sub.k.sup.2+ Al.sub.l.sup.3+ Nd.sub.m.sup.3+ P.sub.n.sup.5+ (O.sub.x.sup.2- F.sub.y.sup.1-) wherein 2x plus y is always 1, k, l, m and n represent the number of atoms to which they are subscripted with relation to the sum of x plus y, h is 0.05 to 0.25, k is 0.1 to 0.35, m is 0.0001 to 0.015, l is zero to 0.15, n is 0.02 to 0.15, and x is 2 n to 3.2 n, and wherein said glass composition has a fluorescent decay time greater than 450 microseconds at a wave length of about 1050 nm, a cross-section of stimulated emission greater than 3.3 × 10 -20 cm. 2 , and an n 2 value of less than 0.6 × 10 -13 cm. 2 /(statvolts) 2