Differences between revisions 10 and 13 (spanning 3 versions)
Revision 10 as of 2009-05-15 10:55:33
Size: 1811
Editor: whitehole
Comment:
Revision 13 as of 2009-06-03 11:35:30
Size: 4254
Comment:
Deletions are marked like this. Additions are marked like this.
Line 6: Line 6:
----

||Parameter||LCGT BRSE(2004)||LCGT BRSE(2009)||LCGT DRSE(2009)||units||
||Wave length||1064||1064||0164||nm||
||Initial Laser Power||300|||| ||W||
||Injecting Laser Power into IFO||100||75||75||W||
||Modulation depth||0.1|| || || ||
||RF freq 1||()|| || ||MHz||
||RF freq 2||()|| || ||MHz||
||1st MC length|| || || ||m||
||2nd MC length|| || || ||m||
||1st MC FSR|| || || ||MHz||
||2nd MC FSR|| || || ||MHz||
|| || || || || ||
||EM Reflectivity||0.9995|| || || ||
||FM Reflectivity||0.995|| || || ||
||PRM Reflectivity||0.76|| || || ||
||SRM Reflectivity||0.68|| || || ||
||BS Reflectivity|| || || || ||
||EM Transmissivity|| || || || ||
||FM Transmissivity|| || || || ||
||PRM Transmissivity|| || || || ||
||SRM Transmissivity|| || || || ||
||BS Transmissivity|| || || || ||
||EM Loss||20|| || ||ppm||
||EM Loss||20|| || ||ppm||
||PRM Loss||20|| || ||ppm||
||SRM Loss||20|| || ||ppm||
||Loss L(BS)||20|| || ||ppm||
|| || || || || ||
||Arm cavity length||3000|| || ||m||
||PR cavity length|| || || ||m||
||PRM-BS length|| || || ||m||
||BS-FM X length|| || || ||m||
||BS-FM Y length|| || || ||m||
||Asymmetry length|| || || ||m||
||SR cavity length|| || || ||m||
||SRM-BS length|| || || ||m||
||SRC detuning phase|| || || ||degree||
|| || || || || ||
||Arm cavity FSR|| || || || ||
||PRC cavity FSR|| || || || ||
||SRC cavity FSR|| || || || ||
|| || || || || ||
||Arm cavity Finesse||1250?|| || || ||
||PRC cavity Finesse|| || || || ||
||Arm power gain|| || || || ||
||Arm power||0.796|| || ||MW||
||PR gain||10?|| || || ||
||SR gain||10?|| || || ||
|| || || || || ||
||EM mass||50.9|| || ||kg||
||FM mass||50.9|| || ||kg||
||PRM mass|| || || ||kg||
||SRM mass|| || || ||kg||
||BS mass|| || || ||kg||
|| || || || || ||
||EM ROC||4500|| || ||m||
||FM ROC||Infinity|| || ||m||
||PRM ROC|| || || ||m||
||SRM ROC|| || || ||m||
||BS ROC|| || || ||m||
|| || || || || ||
||EM AR Reflectivity|| || || || ||
||FM AR Reflectivity|| || || || ||
||PRM AR Reflectivity|| || || || ||
||SRM AR Reflectivity|| || || || ||
||BS AR Reflectivity|| || || || ||
||EM AR Loss|| || || || ||
||FM AR Loss|| || || || ||
||PRM AR Loss|| || || || ||
||SRM AR Loss|| || || || ||
||BS AR Loss|| || || || ||
||EM bulk Loss||1000|| || ||ppm||
||FM bulk Loss||1000|| || ||ppm||
||PRM bulk Loss||1000|| || ||ppm||
||SRM bulk Loss||1000|| || ||ppm||
||BS bulk Loss||1000|| || ||ppm||
Line 8: Line 86:


----

..Up

Confirmation of the current status

The first task of this working group is to establish a consensus between the members about the currently proposed ISC scheme. We will confirm what has been done so far in what degree of detail. Then decide what should be done next.


Parameter

LCGT BRSE(2004)

LCGT BRSE(2009)

LCGT DRSE(2009)

units

Wave length

1064

1064

0164

nm

Initial Laser Power

300

W

Injecting Laser Power into IFO

100

75

75

W

Modulation depth

0.1

RF freq 1

()

MHz

RF freq 2

()

MHz

1st MC length

m

2nd MC length

m

1st MC FSR

MHz

2nd MC FSR

MHz

EM Reflectivity

0.9995

FM Reflectivity

0.995

PRM Reflectivity

0.76

SRM Reflectivity

0.68

BS Reflectivity

EM Transmissivity

FM Transmissivity

PRM Transmissivity

SRM Transmissivity

BS Transmissivity

EM Loss

20

ppm

EM Loss

20

ppm

PRM Loss

20

ppm

SRM Loss

20

ppm

Loss L(BS)

20

ppm

Arm cavity length

3000

m

PR cavity length

m

PRM-BS length

m

BS-FM X length

m

BS-FM Y length

m

Asymmetry length

m

SR cavity length

m

SRM-BS length

m

SRC detuning phase

degree

Arm cavity FSR

PRC cavity FSR

SRC cavity FSR

Arm cavity Finesse

1250?

PRC cavity Finesse

Arm power gain

Arm power

0.796

MW

PR gain

10?

SR gain

10?

EM mass

50.9

kg

FM mass

50.9

kg

PRM mass

kg

SRM mass

kg

BS mass

kg

EM ROC

4500

m

FM ROC

Infinity

m

PRM ROC

m

SRM ROC

m

BS ROC

m

EM AR Reflectivity

FM AR Reflectivity

PRM AR Reflectivity

SRM AR Reflectivity

BS AR Reflectivity

EM AR Loss

FM AR Loss

PRM AR Loss

SRM AR Loss

BS AR Loss

EM bulk Loss

1000

ppm

FM bulk Loss

1000

ppm

PRM bulk Loss

1000

ppm

SRM bulk Loss

1000

ppm

BS bulk Loss

1000

ppm


Length Sensing Scheme Review by Somiya (Japanese) lcgtrse.pdf

Length Sensing Scheme Review for advLIGO by Somiya AdvLIGO-LSCv4.pdf


I tried to log in but I'm not sure if I am in, so in case, this is Fumiko :)

Here I put some kat files I used for calculating LCGT signal matrix. LCGT.kat has all the parameters that are used. Note that it was written more than a year ago, and they are not updated. I will list these parameters when I can here, outside the kat file but for now I just attach some files. Also note that they are the same as what Andreas Freise has, because I made these when he needed to collect some LCGT parameters and some kat files and so on. Maybe Koji remembers about him contacting us about a year ago, do you??

Here I have three kat files with three m. files and what do they do?

lcgt.kat / contourplot.m

  • : With contourplot.m, it is used to make contourplots of error signals.

dp.kat / demphase.m

  • : With demphase.m it is used to create a text file "phase.txt"
    • which shows demodulation phase that procuces maximum signals.

s.kat / signalmatrix.m

  • :With signalmatrix.m, it is used to create two text files, "matrix_raw.txt" and "matrix_norm.txt" which show signal matrix with raw values and normalized valies respectively.

ok, now I try to attach files hope it works like this...hm.

LCGT/subgroup/ifo/ISC/TaskList/CurrentStatus (last edited 2010-06-03 14:34:47 by YoichiAso)