KAGRA – Toward joining O3

Masatake OHASHI (ICRR)
The extreme Universe viewed in very-high-energy gamma-rays 20181

Schedule of KAGRA
2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020
Project start
Tunnel Excavation

3km Michelson InterferometeriKAGRAFirst operation
3km Cryogenic InterferometerbKAGRA

Final installation

Commissioning and Observation
The extreme Universe viewed in very-high-energy gamma-rays 20182

Toward joining O3• We have decided to accelerate KAGRA schedule to join O3.

acceleration

The extreme Universe viewed in very-high-energy gamma-rays 20183

Required Items◎: Necessary for locking○: Can be omitted with extra work△: Can be omitted with sensitivity degradation
×: Not necessary
Sensitivity (10W, x4 O1excess)* AM generation with 45 deg tilted
EOM is not possible with wedged
EOM

DRFPMI (RSE)(42 Mpc)

PRFPMI(27 Mpc)

FPMI(9.5 / 16 Mpc)

ALS (green lock)◎○×(better to have)f3 AM (MZI *)◎○×

Extra locking simulation

×◎×

SRC ASC

◎

××

SRM

◎

○(Blank or move OMMT)○(Blank or move OMMT)OMC△△△SRC ASC might be toughf1 will be 1/10, no SRC
mode cleaning

PRM: tilt or blank ormove IMMTNo PRC jitter attenuation

CommentThe extreme Universe viewed in very-high-energy gamma-rays 2018

4

Noise Curves
Enomoto and Michimura made 3 noise curves of KAGRA with BNS range of(1.3, 9.6, 42)Mpc.
We interpolate these curves to obtain noise curves for other ranges.
For LIGO/Virgo, LIGO: 120Mpc, Virgo 60Mpc (taken from arXiv:1304.0670v6)(Living Reviews in Relativity; 21:3; 2018)

Various possibilities of KAGRA's sensitivity

KAGRA(1Mpc)
KAGRA(5Mpc)
KAGRA(10Mpc)
KAGRA(20Mpc)
Virgo(60Mpc)
LIGO(120Mpc)

The extreme Universe viewed in very-high-energy gamma-rays 201852018/8/20 chief meetingbKAGRA phase-2 schedule
ITMX arrives
Toyama Univ.5/7

ITMY arrives
Toyama Univ.8/27

High Power Laser, IMC, IMM

Y-end
BRT

Yend
WA
B

Green Lock System
X-front WAB &NAB installY-front WAB cool test

Output Mode Cleaner, OMMT, OFI
Y
front
WAB

X-end
BRTXend
WABY
front/end NAB

SR2, 3, M install

ITMX Type-A Tower install

ITMY Type-A Tower installY-end Pcal install &test

Phase 1Operation

ETMX Install

2018

JanFebMarJanFeb

Mar

Center, I/ETMY Yarm COM.
Beam Alignment DRMI COM.
Pumping
ETMX Control,
ETMX
Alignment,
Take outPumping
Re-Install
I/ETMYcooling

ITMY
Center,Assemble
I/ETMXBeam
ITMX
Align.
contr
Pump.

X-endPcal
install

ETMX cooling
Measurements

May

Jun

Jul

Aug

Sep

Xend
NAB

ETM
Y
Contr

Apr

May

Jun

DRFPMI COM.
FPMI

OR

ETMX
cool

FPMI
ASC

Post COM.

JulAugBeam Align, Pump

Xarm COM.
X-end Pcal test

Oct

DRFPMI
ASC/Laser
power up

Sep

I/ETMYcooling

ITMY ITMY
Center, I/ETMY
Instal Contr

Nov

Oct

ITMX
cool
ETMX
Take out
Re-InstallDec
Checkpoint

Checkpoint

Checkpoint

O3start2019

Apr

ITMX Install

ETMY
Type-A
Tower
RetuneETMYTake out
Re-Instal

O3end

Nov

Dec

PostCOM.
MiddleBaffleMiddleBaffle62018/8/20 chief meetingbKAGRA phase-2 schedule
ITMX arrives
Toyama Univ.5/7

ITMY arrives
Toyama Univ.8/27

Outline of the schedule
Laser, IMC,
IMM
Output Mode Cleaner, OMMT, OFI• Installation will be completed by theHigh
endPowerof March
2019.
Y-end
Green
Lock System• Commissioning will BRT
start from September
2018
along withY-endinstallation
works. XYYend
X-endfront
WA (FPMI)
X-front WABconfiguration&• Commissioningofthefirstfullinterferometer
willstartfromMarch
front/enWABRTWA
B
Y-front WAB cool test
NAB installd NAB
B
2019. After then, we start DRFPMI
or FPMI, depending on results ofB three checking
pointsSR2, 3, M install
ETMY
planned on the end of September, December and March.
ETM
I/ETMY
Type-AETMY
ITMX Type-A Tower install

ITMY Type-A Tower installY-end Pcal install &test

X-arm
Phase 1Operation

ETMX Install

Y-arm
2018

JanFebMarJanFeb

Mar

Center, I/ETMY Yarm COM.
Beam Alignment DRMI COM.
Pumping
ETMX Control,
ETMX
Alignment,
Take outPumping
Re-Install
I/ETMYcooling

X-end
Pcal
install

ETMX cooling
Measurements

May

Jun

Jul

Aug

Sep

Xend
NAB

Y
Contr

Tower
RetuneITMY
Center,Assemble
I/ETMXBeamITMXAlign.
contrPump.

Apr

May

Jun

DRFPMI COM.
FPMI

OR

ETMX
cool

FPMI
ASC

Post COM.

JulAugBeam Align, Pump

Xarm COM.
X-end Pcal test

Oct

DRFPMI
ASC/Laser
power upSep

cooling

ITMY ITMY
Center, I/ETMY
Instal Contr

Nov

Oct

ITMX
cool
ETMX
Take out
Re-InstallDec
Checkpoint

Checkpoint

Checkpoint

O3start2019

Apr

ITMX Install

Take out
Re-Instal

O3endNov

Dec

PostCOM.
MiddleBaffleMiddleBaffle7

2018/8/20 chief meetingbKAGRA phase-2 schedule
ITMX arrives
Toyama Univ.5/7

ITMY arrives
Toyama Univ.8/27

High Power Laser, IMC, IMM
Output Mode Cleaner, OMMT, OFI
Checkpoint at the end
Y-end of September
Green Lock SystemIf either ITMY, BRT
high power laser orgreen lock systemY-endis not available
at thisX-point,YYend
X-endfrontWA
X-front WAB &front/en
FPMI is Y-front
to beWAB
selected.
WABRTWAB
cool test
NAB install
d NAB
B

B

SR2, 3, M install

ITMX Type-A Tower install

ITMY Type-A Tower installY-end Pcal install &test

Phase 1
Operation

ETMX Install

2018

JanFebMarJanFeb

Mar

Center, I/ETMY Yarm COM.
Beam Alignment DRMI COM.
Pumping
ETMX Control,
ETMX
Alignment,
Take out
Pumping
Re-Install
I/ETMYcooling

ITMYCenter,Assemble
I/ETMXBeam
ITMX
Align.
contrPump.

X-endPcal
installETMX cooling
Measurements

May

JunJulAug

Sep

Xend
NAB

ETM
YContr

Apr

May

Jun

DRFPMI COM.
FPMIORETMX
cool

FPMIASC

Post COM.

JulAugBeam Align, Pump

Xarm COM.
X-end Pcal test

Oct

DRFPMI
ASC/Laser
power up

Sep

I/ETMYcooling

ITMY ITMY
Center, I/ETMY
Instal Contr

Nov

Oct

ITMX
cool
ETMX
Take out
Re-Install

Dec
Checkpoint

Checkpoint

Checkpoint

O3start2019

Apr

ITMX Install

ETMY
Type-A
Tower
RetuneETMYTake out
Re-Instal

O3end

Nov

Dec

PostCOM.
MiddleBaffleMiddleBaffle82018/8/20 chief meetingbKAGRA phase-2 schedule
ITMX arrives
Toyama Univ.5/7

ITMY arrives
Toyama Univ.8/27

High Power Laser, IMC, IMM
Output Mode Cleaner, OMMT, OFI
Checkpoint at theY-end
end of December
YLock System
If any serious BRT
delay or troubles inGreenX-arm
commissioning
would
beY found, XY
end
end
X-end
front
WA
X-front WAB &front/en
FPMI istobeselected.
WABRTWAB
Y-front WAB cool test
NAB install
d NAB
BB

SR2, 3, M install

ITMX Type-A Tower install

ITMY Type-A Tower installY-end Pcal install &test

Phase 1Operation

ETMX Install

2018

JanFebMarJanFeb

Mar

Center, I/ETMY Yarm COM.
Beam Alignment DRMI COM.
Pumping
ETMX Control,
ETMX
Alignment,
Take outPumping
Re-Install
I/ETMYcooling

ITMY
Center,Assemble
I/ETMXBeam
ITMX
Align.
contr
Pump.

X-end
Pcal
install

ETMX cooling
Measurements

May

Jun

Jul

Aug

Sep

Xend
NAB

ETM
YContr

Apr

May

Jun

DRFPMI COM.
FPMIORETMX
cool

FPMI
ASC

Post COM.

JulAugBeam Align, Pump

Xarm COM.
X-end Pcal test

Oct

DRFPMI
ASC/Laser
power up

Sep

I/ETMYcooling

ITMY ITMY
Center, I/ETMY
Instal ContrNov

Oct

ITMX
cool
ETMX
Take out
Re-Install

Dec
Checkpoint

Checkpoint

Checkpoint

O3start2019

Apr

ITMX Install

ETMY
Type-ATower
RetuneETMYTake out
Re-Instal

O3end

Nov

Dec

PostCOM.
MiddleBaffleMiddleBaffle92018/8/20 chief meetingbKAGRA phase-2 schedule
ITMX arrives
Toyama Univ.5/7

ITMY arrives
Toyama Univ.8/27

Checkpoint at theY-end
end of MarchHigh Power Laser, IMC, IMM Output Mode Cleaner, OMMT, OFIYGreen Lock System
XDRFPMI will BRT
be selected if all theelements are available,
YendYend
X-endfrontWA
X-front WAB &front/en
WA
BRT
otherwiseASC(alignmentsensingcontrol)ofFPMI
isproceeded.
WAB
Y-front WAB cool test
NAB install
d NAB
B

B

SR2, 3, M install

ITMX Type-A Tower install

ITMY Type-A Tower installY-end Pcal install &test

Phase 1
Operation

ETMX Install

2018

JanFebMarJanFeb

Mar

Center, I/ETMY Yarm COM.
Beam Alignment DRMI COM.
Pumping
ETMX Control,
ETMX
Alignment,
Take out
Pumping
Re-Install
I/ETMYcooling

ITMY
Center,Assemble
I/ETMXBeamITMXAlign.
contrPump.

X-endPcal
install

ETMX cooling
Measurements

MayJun

Jul

Aug

Sep

Xend
NAB

ETM
YContr

Apr

May

Jun

DRFPMI COM.
FPMIORETMX
cool

FPMIASC

Post COM.

JulAugBeam Align, Pump

Xarm COM.
X-end Pcal test

Oct

DRFPMI
ASC/Laser
power up

Sep

I/ETMYcooling

ITMY ITMY
Center, I/ETMY
Instal Contr

Nov

Oct

ITMX
cool
ETMX
Take out
Re-Install

Dec
Checkpoint

Checkpoint

Checkpoint

O3start2019

Apr

ITMX Install

ETMY
Type-A
Tower
RetuneETMYTake out
Re-Instal

O3end

Nov

Dec

PostCOM.
MiddleBaffleMiddleBaffle102018/8/20 chief meetingbKAGRA phase-2 schedule
ITMX arrives
Toyama Univ.5/7

ITMY arrives
Toyama Univ.8/27

Data transfer rehearsal (test with L/V); possible schedule
High dummyPower Laser,IMC, before
IMM
OutputMode Cleaner, OMMT, OFI• DMG & DAS are planning DTRs withdata
O3 starting.
Y-end
YLock System
KSC is in charge BRTof scheduling and Greenso on.
XYend
Y
end
X-end
front
WA
X-frontbe
WAB&• DTRs shown Y-front
on thebottom
schedule
willusing
live
KAGRA
data.
front/en
WABRTWAB
WAB cool test
NAB installd NAB
BB
DTRs may take a week SR2,or so.
3, M install
ITMX Type-A Tower install

ITMY Type-A Tower installY-end Pcal install &test

Phase 1Operation

ETMX Install

2018

JanFebMarJanFeb

Mar

Center, I/ETMY Yarm COM.
Beam Alignment DRMI COM.
Pumping
ETMX Control,
ETMX
Alignment,
Take out
Pumping
Re-Install
I/ETMYcooling

ITMY
Center,Assemble
I/ETMXBeam
ITMX
Align.
contr
Pump.

X-endPcal
install

ETMX cooling
Measurements

May

Jun

Jul

Aug

Sep

Xend
NAB

ETM
YContr

AprMayJun

Jul

DRFPMI COM.
FPMIORETMX
cool

FPMIASCDTR

Beam Align, PumpXarm COM.
X-end Pcal test

Oct

Nov

Sep

Oct

ITMX
cool
ETMX
Take out
Re-Install

Dec
Checkpoint

O3end

Nov

Dec

PostCOM.

DRFPMI
ASC/Laserpower up

Post COM.

DTR

Aug

I/ETMYcooling

ITMY ITMY
Center, I/ETMY
Instal Contr

Checkpoint

Checkpoint

O3start2019

Apr

ITMX Install

ETMY
Type-A
Tower
RetuneETMYTake out
Re-InstalMiddle
BaffleMiddleBaffleDTR

11DTR

Summary• In the spring of 2019, we expect to complete
the construction phase and move on to thecommissioning phase. KAGRA plans to join O3
in the fall of 2019.

The extreme Universe viewed in very-high-energy gamma-rays 20181212