The laser does not start modelocking/ there is no laser output – what can I do?

There are different causes which can prevent the system from lasing or modelocking. Please check the following steps to ensure this is not caused by an external factor. For gecco systems please ensure to check steps 1 – 6 prior to any cleaning or realignment. For venteon systems also include step 7.

1. システムの電源を完全に切り（電源ユニットを含む）、約30分待ってからシステムを再起動してください。
2. Please ensure that the cooling system is running properly: a. Are the tubes connected? b. Is the chiller switched on? c. Is the fluid circulating? d. What are the temperatures of the laser head and power supply unit and are the temperatures settling?)
3. すべてのケーブルがレーザー・ヘッドと電源ユニットに正しく固定されていることを確認してください。
4. Please ensure that the key is turned to the 'on' position, the 'Laser' button is pressed and that the warm up phase is finished.
5. ファイバーに損傷やよじれがないか確認してください。
6. Please ensure that the laser head is mounted on a flat and clean metallic surface with no more than a torque of 2Nm. If the base, where the laser head is mounted on, is slightly bent, if there is some debris between the laser head and the base or if the laser head is mounted with more than 2Nm, the screwing down can lead to a bending of the laser housing, which affects performance. Please make sure that both the bottom face of the laser and the table are clean and screw it gently down while observing the output power. The power should not change by more than 2%.
7. venteonシステムの場合は、電動分散ウェッジを反時計回り（-）方向に動かして、モードロックを開始してみてください。
8. geccoおよびventeonシステムの場合、前の手順で問題が解決しなかった場合は、マニュアルに従って光学部品を清掃してください。
9. geccoおよびventeonシステムの場合、前の手順で問題が解決しなかった場合は、マニュアルに従ってキャビティを再調整してください。
10. それでも問題が発生する場合は、サポートチームにお問い合わせください

Related to: venteon/ taccor/ gecco