Workshop of Consortium fOr Photon SCience and Technology
http://www.c-phost.ip/
一一L"一Seminar room 201 , IMS Main Oﬃce Building , Okazaki, Aichi , Japan ,September ll (Tuesday), 2012

Workshop Organizers;
Takunori Taira, and Takao FUji, Laser Research Center fOr Molecular Science, Institute for
Molecular Science (IMS), 3 8 Nishigonaka, MyodaUi, Okazaki､444-8585,Japan
Cooperated by;
ツノLaser Society of Japan h t t p : / / w w w . l S i . o r. i p /一----一一一一一一一一一一一■ｸｰｰｰｰｰ壱一＝̅̅一

http一-一二̅-­­://www・astf.or. ip

A i c h i SSciencecience &Tbchr& Tbchnology
FoundationProgram

65Micro Solid-State Photonics toward Giant Micro-PhotOnic"

1 5 : 00- 15 : 20 0pening Remarks
T. Taira (IMS , Japan)

1 5 : 20-16 : 20

Cryogenic Yb-doped lasers fbr eﬃcient nanosecond, picosecond, andfemtosccond sources

T.Y. Fan (MIT LincOln LabOratOry, USA)1 6:20-16:40

16:40-17:40

Coﬀee BreakDirect writing of 3D microﬂuidic and photonic circuits in glass with ultrafast
laser pulses

Y. Cheng (Shanghai lnstitute of Optics and Fine Mechanics , CAS)
1 7 :40-17 :50 CIosing Remarks

T,FUji (IMS, Japan)

Cryogenic Yb-Doped Lasers fOr Eﬃcient Nanosecond, Picosecond, andFemtoSecond Sources*

T, Y.

Fan4〃TL加co/" Lα加γα/ory, 244 Wood S""r, Lﬀx加g/o", MA O2420 USA

OperationoflasersatcryogenictemperatureshasbeenusedsincetheveryearliestdaysOflaserdevelopment.
Generally , operation at low temperatures has been viewed as an undesirable and impractical means to improvelaser pelformance. However, many of the fundamental laser materials propertie､thermal conductivity, thennal
expansion,dn/dT,saturationintensityandﬂuence)improvesigniﬁcantlyasthetemperaturedecreases.
Additionally, many rare-earth-ion-doped solid-state lasers that al･e quasi-three-level lasers at 300 K become 4levellaserSatcryogenictemperature,1eadingtomoreeﬃcientlaseroperation・Theoverheadassociatedwith
cryogenic cooling has been mitigated over time as cryogenics have become increasingly ubiquitous.
Recent laser demonstrationS have taken advantage of the improved propertieS to *ale the power of relatively

simpleend-pumpedlaserstolOO'sofWofoutputpowerandprovideperformancethatisnotpossiblewithconventional room-temperature lasers・The performance improved pelformance is particularly of interest for
laser systems that need both high average and high peak powers simultaneously. I provide an overview ofcryogenicsolid-state lasers, discussrecent demonstrations, andgivea perspective on the futureof thisteChnolog)*ThisworkwassponsoredbytheDefenseAdvancedPrQjectsResearchAgencyunderAirForceContract
FA8721-05-C-0002.Opinions、interpretations,conclusions,andrecommendationsarethoseoftheauthorsand
are not necessarily endorsed by the United States Govemment.

Direct writing of 3D micronuidic and photonic circuitS in glasswith ultrafast laser pulses

Y. C h e n g
S“"g"j /Ws""e Q/ OP"csα"dF加e Mec""", C"""e Acczde"2y q/Sc花"“sNo. 390, Q"gﾉzE Ro", """g, Shα"gh" 201800, CﾉZ加a

Integrated optoﬂuidic devices or microsystems are highly functional miniaturized devices composed ofmicroﬂuidic and micro-optical components synergistically combined with each other. They hav e fo Und
important applications in chemical sensing, biosensing, and reconﬁgurable photonics . Femtosecond laser direct
writing is a promising technique fOr fabricating optoﬂuidic devices since it can modify the interior of glass in a
spatially selective manner , enabling fabrication of not only optical components such as optical waveguides , 3D
free-space micro-optics , and high-Q micro-optical cavities , but also functional 3D microﬂuidic structures ofarbitrary geometries . The unique capability of femtosecond laser direct writi ng fOr simultaneously creating
microﬂuidic and optical circuits allows integration of microoptics and micronuidics with extreme nexibility andsimplicity. In this talk, we will review the latest progress we made in this research ﬁeld.