Fabrication and Optical Property of Optical Fiber Incorporated with $TiO_2$ Non-particles

(1)

(2)

200 250 300 350 400 450 500 550 600 650 700 750 800 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5

Absor

b

ance

(dB)

W avelength (nm )

P re form sam ple 1 (0.1M ) P re form sam ple 2 (0.01M ) R eferen ce

A b sorp tion from T iO

2

400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 0.000 0.002 0.004 0.006 0.008 0.010 0.012 3d orbit d-d transition of Ti ions Absorption from Ti m etal C ut-off w avelength Sam ple 1

Absorption C

o

effi

cient

[cm

-1

]

W avelength [nm ]

O H peak 350 360 370 380 390 400 410 420 430 440 450 460 470 480 490 500 -100 -95 -90 -85 -80 -75 -70 -65 -60

In

tensit

y (dB

m

)

W avelength (nm )

P um p laser : 5m W H eC d laser (325nm ) F iber sam ple1 (T iO2)

P L from T iO

2

nano particles

600 650 700 750 800 850 900 950 1000 1050 1100 1150 1200 -85 -80 -75 -70 -65 -60

Fabrication and Optical Property of Optical Fiber Incorporated with $TiO_2$ Non-particles

Absor

b

ance

(dB)

W avelength (nm )

A b sorp tion from T iO

Absorption C

o

effi

cient

[cm

]

W avelength [nm ]

In

tensit

y (dB

m

)

W avelength (nm )

P L from T iO

nano particles

In

tensit

y (dB

m

)

W avelength (nm )

P L from defec t on T iO

n ano p articles