Single-mode all-silica photonic bandgap fiber with 20-microm mode-field diameter.
An all-silica photonic bandgap fiber with a cladding index difference of approximately 2 % and diameter-to-pitch ratio (d/wedge) of 0.12 was fabricated and studied. To our knowledge, this is the first report on the properties of photonic bandgap fiber with such a small d/wedge. The fiber is single-mode in the fundamental bandgap. The mode field diameter in the 1000-1200 nm wavelength range is 19-20 microm. The minimum loss in the same range is 20 dB/km for a 30-cm bending diameter. In our opinion, all-silica photonic bandgap fiber can serve as a potential candidate for achieving single-mode propagation with a large mode area.
Egorova
O N
ON
Fiber Optics Research Center RAS, 38 Vavilov Street, 119333 Moscow, Russia.
Semjonov
S L
SL
Kosolapov
A F
AF
Denisov
A N
AN
Pryamikov
A D
AD
Gaponov
D A
DA
Biriukov
A S
AS
Dianov
E M
EM
Salganskii
M Y
MY
Khopin
V F
VF
Yashkov
M V
MV
Gurianov
A N
AN
Kuksenkov
D V
DV
D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D012822:Silicon Dioxide / Q000737:chemistry*
D012822:Silicon Dioxide