manifestation_id	original_title	title_alternative	title_transcription	statement_of_responsibility	manifestation_identifier	creator	contributor	publisher	date_of_publication	pub_date	year_of_publication	publication_place	manifestation_created_at	manifestation_updated_at	carrier_type	content_type	frequency	language	isbn	issn	doi	jpno	ncid	lccn	iss_itemno	volume_number	volume_number_string	edition	edition_string	issue_number	issue_number_string	serial_number	extent	start_page	end_page	dimensions	height	width	depth	manifestation_price	access_address	manifestation_required_role	abstract	description	identifier:unknown	identifier:nbn	identifier:isbn10	identifier:iss_itemno	identifier:online_isbn	identifier:print_isbn	identifier:print_issn	identifier:online_issn	identifier:escidoc	identifier:nims	series_statement_id	series_statement_original_title	series_statement_title_subseries	series_statement_title_subseries_transcription	series_statement_title_transcription	series_statement_creator	series_statement_volume_number	series_statement_series_master	series_statement_root_manifestation_id	series_statement_manifestation_id	series_statement_position	series_statement_note	series_statement_created_at	series_statement_updated_at	subject:ndlsh	subject:unknown	subject:bsh	classification:ndc8	classification:ndc9	classification:udc	item_id	item_identifier	binding_item_identifier	call_number	library	shelf	item_note	accepted_at	acquired_at	item_created_at	item_updated_at
105417	"Formation of optical coupling structure between two ends of silica 
glass optical fibers by inserting tellurite glass melt"					TODOROKI Shin-ichi//Nukui A.//Inoue S.	""	""	2002-05-01 00:00:00 +0900	2002-05-01	2002		2015-12-15 21:30:37 +0900	2023-07-31 14:41:14 +0900	online_resource	text	unknown	English	""	""														476	478						https://hdl.handle.net/20.500.11932/28375	Guest	" Several nano liters of tellurite glass melt was inserted
and quenched between two ends of silica glass optical fibers to form a
optical coupling structure, whose length was several hundred um.
Dispite the large gap of thermal expansion coefficient between these
glass materials, neither fracture nor bubbles were observed, which
usually lead to a large optical propagation loss.  The insertion loss
was less than 10 dB, which was mainly due to the lack of an optical
waveguide structure in the tellurite glass segment.  Further loss
decrease is expected to be possible by introducing a refractive index
modulation. "		""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	optical fiber//tellurite glass//thermal expansion//optical fiber//tellurite glass//thermal expansion//optical fiber//tellurite glass//thermal expansion	""	""	""	""	99798				web	web				2023-07-31 14:41:14 +0900	2023-07-31 14:41:14 +0900
105407	"Combinatorial Fluorescence Lifetime Measuring
System for Developing Er-Doped Transparent Glass Ceramics"					TODOROKI Shin-ichi//Inoue S.	""	""	2004-02-15 00:00:00 +0900	2004-02-15	2004		2015-12-15 21:30:27 +0900	2023-07-31 14:38:51 +0900	online_resource	text	unknown	English	""	""														39	43						https://hdl.handle.net/20.500.11932/28369	Guest	"Fluorescence lifetime of Er3+ was measured for F-doped tellurite
glasses with parallel heat treatment under a temperature gradient
atmosphere in order to find the annealing condition to make transparent
glass ceramics in which Er3+ ions are located in the precipitated
crystals.  The preparation and annealing of the samples were performed
in a vertical temperature gradient furnace, where molten glass was
sucked into a pre-heated Pyrex glass tube.  The annealing temperature
range is between 350 degC and 800 degC.  After the annealing
treatment, time-resolved fluorescence emission of Er3+ (1.55um;
excitation light source is 977nm) were measured sequentially along the
tube.  The lifetime of the emission was about 2.6 msec for as-prepared
glass.  We have found that the lifetime increased to 5.2 msec when the
glass was annealed at 470 degC for 5 min and 550 degC for 5 min
successively, although its transparency was lost.  This increase implies
that the Er3+ ions are embedded in fluorine-rich phase to bring about
reduced non-radiative emission.  We are now continuing to find the
condition to get transparent glass ceramics.
"		""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	tellurite glass//erbium//fluorescence lifetime	""	""	""	""	99360				web	web				2023-07-31 14:38:51 +0900	2023-07-31 14:38:51 +0900
105406	"Low loss optical coupling structure between two ends of
silica glass optical fibers by inserting TeO2 melt"					TODOROKI Shin-ichi//Inoue S.	""	""	2003-10-15 00:00:00 +0900	2003-10-15	2003		2015-12-15 21:30:25 +0900	2023-07-31 14:40:53 +0900	online_resource	text	unknown	English	""	""														237	240						https://hdl.handle.net/20.500.11932/28372	Guest	"Less than 1.5dB of insertion loss was realized in an optical coupling
structure in which two TEC (Thermal-diffusion Expanded Core) fibers are
spliced via quenched TeO2 melt whose length was 0.5mm.  The quenched
melt seems to be free of precipitates because they would bring about
larger loss if existed.  The loss due to imperfect optical coupling
between the fibers is estimated to be about 1 dB, which can be reduced
by introducing some refractive index modulation into the present
structure.
"		""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	optical fiber//tellurite glass	""	""	""	""	99731				web	web				2023-07-31 14:40:53 +0900	2023-07-31 14:40:53 +0900
105335	Formation of optical coupling structure between silica glass waveguides and molten tellurite glass droplet					Todoroki S.//Nukui A.//Inoue S.	""	""					2015-12-15 21:29:11 +0900	2025-07-14 15:47:27 +0900	online_resource	text	unknown	English	""	""																					https://hdl.handle.net/20.500.11932/28398	Guest	"Several nano liters of tellurite glass melt
(xTeO2-(100-x)ZnO, x=80,90,100 in mol%)
were inserted and quenched between two ends of silica glass optical
fibers to form a new optical coupling structure, whose length was
several hundred microns.  No visible precipitates were found even in the
quenched melt of 100% TeO2.  On the basis of reflection and
insertion loss measurements and a bending test, it is proved that
there's no micro crystals in the quenched melt segment which cause light
scattering and/or stress concentration.

Few tens nano liters of the melt were also inserted into a silica glass
capillary tube with the interior diameter of 126 $\mu$m, in order to
examine their tolerance to the residual stress induced on cooling due to
the large gap in thermal expansion coefficient between the two glasses.
Neither fracture nor bubbles were observed in the quenched melt inside
if its length is less than 2mm.  This implies that tellurite melt can be
introduced into voids of sub-mm in size to integrate hybrid lightwave
circuits.
"		""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	optical fiber//tellurite glass//insertion loss//thermal expansion coefficient//optical fiber//tellurite glass//insertion loss//thermal expansion coefficient//optical fiber//tellurite glass//insertion loss//thermal expansion coefficient	""	""	""	""	104431				web	web				2025-07-14 15:02:29 +0900	2025-07-14 15:47:27 +0900
103749	Formation of optical coupling structure between silica glass waveguides and molten tellurite glass droplet					TODOROKI Shin-ichi//Nukui A.//Inoue S.	Zhu Congshan	""					2015-05-28 18:07:12 +0900	2023-07-31 14:42:08 +0900	online_resource	text	unknown	English	""	""																					https://hdl.handle.net/20.500.11932/101921	Guest	"Several nano liters of tellurite glass melt
(xTeO2-(100-x)ZnO, x=80,90,100 in mol%)
were inserted and quenched between two ends of silica glass optical
fibers to form a new optical coupling structure, whose length was
several hundred microns. No visible precipitates were found even in the
quenched melt of 100% TeO2. On the basis of reflection and
insertion loss measurements and a bending test, it is proved that
there's no micro crystals in the quenched melt segment which cause light
scattering and/or stress concentration.

Few tens nano liters of the melt were also inserted into a silica glass
capillary tube with the interior diameter of 126 $\mu$m, in order to
examine their tolerance to the residual stress induced on cooling due to
the large gap in thermal expansion coefficient between the two glasses.
Neither fracture nor bubbles were observed in the quenched melt inside
if its length is less than 2mm. This implies that tellurite melt can be
introduced into voids of sub-mm in size to integrate hybrid lightwave
circuits."		""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	optical fiber//tellurite glass//insertion loss//thermal expansion coefficient//optical fiber//tellurite glass//insertion loss//thermal expansion coefficient//optical fiber//tellurite glass//insertion loss//thermal expansion coefficient//optical fiber//tellurite glass//insertion loss//thermal expansion coefficient	""	""	""	""	99968				web	web				2023-07-31 14:42:08 +0900	2023-07-31 14:42:08 +0900
103439	Low loss optical coupling structure between two ends of silica glass optical fibers by inserting TeO2 melt					TODOROKI Shin-ichi//Inoue Satoru	""	""	2003-10-02 00:00:00 +0900	2003-10-02	2003		2015-05-28 18:04:28 +0900	2023-07-31 14:46:42 +0900	online_resource	text	unknown	English	""	""																					https://hdl.handle.net/20.500.11932/94914	Guest	Less than 1.5 dB of insertion loss was realized in an optical coupling structure in which two TEC (Thermal-diffusion Expanded Core) fibers are spliced via quenched TeO2 melt whose length was 0.5 mm. The quenched melt seems to be free of precipitates because they would bring about larger loss if existed. The loss due to imperfect optical coupling between the fibers is estimated to be about 1 dB, which can be reduced by introducing some refractive index modulation into the present structure. This fabrication method is useful to make a connection between silica waveguides and non-silica glasses with poor thermal stability.		""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	""	optical fiber//tellurite glass//splicing//optical fiber//tellurite glass//splicing//optical fiber//tellurite glass//splicing//optical fiber//tellurite glass//splicing	""	""	""	""	100820				web	web				2023-07-31 14:46:42 +0900	2023-07-31 14:46:42 +0900