帮我检查下面这句话的逻辑和语法和时态错误：To obtained high power laser output side-pumped geometry is more favorable compared to end-pumped one as it able to scale pump power easily with stable thermal distribution especi

There are a few errors in the sentence:

1. "To obtained" should be "To obtain".
2. "as it able to" should be "as it is able to".
3. "under intense pump power" should be "under high pump power".
4. "Therefore, we have designed" should be "Therefore, we designed".
5. "diffusive optical reflector" should be "diffuse optical reflector".
6. "No guiding elements were used" should be "No guiding elements are used".

Corrected sentence: To obtain high power laser output, side-pumped geometry is more favorable compared to end-pumped one as it is able to scale pump power easily with stable thermal distribution especially under high pump power [23]. Therefore, we designed a diode-side-pumped laser head based on a ceramic diffuse optical reflector (DOR) and the schematic is illustrated in Fig.1. The laser head is composed of a Tm,Ho:YAG rod, a glass flow tube, a DOR, and three pump modules. No guiding elements are used in case of extra optical loss, which makes the laser head extremely compact, rugged, and convenient for adjusting